Applied Physics (11th Edition)
11th Edition
ISBN: 9780134159386
Author: Dale Ewen, Neill Schurter, Erik Gundersen
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 4, Problem 4AC
As a movie stunt coordinator, you need to be sure a stunt will be safe before it is performed. If a stuntwoman is to run horizontally off the roof of a three-story building and land on a foam pad 7.35 m away from the base of the building, how fast should she run as she leaves the roof? (Each story is 4.00 m.)
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
As a movie stunt coordinator, you need to be sure a stunt will be safe before it is performed. If a
stuntwoman is to run horizontally off the roof of a three-story building and land on a foam pad 7.35 m
away from the base of the building, how fast should she run as she leaves the roof? (Each story is 4.00
m.)
A fox fleeing from a hunter encounters a 0.700 m tall fence and attempts to jump it. The fox jumps with an initial velocity of 7.15 m/s at an angle of 45.0°, beginning the jump 2.05 m from the fence.
By how much does the fox clear the fence? Treat the fox as a particle.
A lifeguard stands on top of a watch tower at the beach and purposely throws a stone horizontally with a speed of vi=18.0 m/s. The height of the tower is 50.0 m above the ground.
With what speed does the stone land?
How long after being released does the stone strike ground?
With what angle of impact does the stone land?
Chapter 4 Solutions
Applied Physics (11th Edition)
Ch. 4.1 - Find the average speed (in the given units) of an...Ch. 4.1 - Find the average speed (in the given units) of an...Ch. 4.1 - Find the average speed (in the given units) of an...Ch. 4.1 - Find the average speed (in the given units) of an...Ch. 4.1 - Find the average speed (in the given units) of an...Ch. 4.1 - Find the average speed (in mi/h) of a racing car...Ch. 4.1 - While driving at 90km/h, how far can you travel in...Ch. 4.1 - While driving at 90km/h, how far (in metres) do...Ch. 4.1 - An automobile is traveling at 55 mi/h. Find its...Ch. 4.1 - An automobile is traveling at 22.0 m/s. Find its...
Ch. 4.1 - A semi-trailer truck traveling 100km/h continues...Ch. 4.1 - A flatbed truck travels for 3.85 hat 105 km/h. How...Ch. 4.1 - The average speed of a garbage truck is 60.0 km/h....Ch. 4.1 - A highway maintenance truck has an average speed...Ch. 4.1 - Find the velocity for each displacement and time....Ch. 4.1 - Find the velocity for each displacement and time....Ch. 4.1 - Find the velocity for each displacement and time....Ch. 4.1 - Find the velocity for each displacement and time....Ch. 4.1 - Find the velocity for each displacement and time....Ch. 4.1 - Find the velocity for each displacement and time....Ch. 4.1 - Mitwaukee is 121 mi (air miles) due west of Grand...Ch. 4.1 - Telluride, Colorado, is 45 air miles at 11 east of...Ch. 4.1 - In Problems 23-30, assume that the planes new...Ch. 4.1 - In Problems 23-30, assume that the planes new...Ch. 4.1 - In Problems 23-30, assume that the planes new...Ch. 4.1 - In Problems 23-30, assume that the planes new...Ch. 4.1 - In Problems 23-30, assume that the planes new...Ch. 4.1 - In Problems 23-30, assume that the planes new...Ch. 4.1 - In Problems 23-30, assume that the planes new...Ch. 4.1 - In Problems 23-30, assume that the planes new...Ch. 4.2 - All automobile changes speed as shown. Find its...Ch. 4.2 - All automobile changes speed as shown. Find its...Ch. 4.2 - All automobile changes speed as shown. Find its...Ch. 4.2 - All automobile changes speed as shown. Find its...Ch. 4.2 - All automobile changes speed as shown. Find its...Ch. 4.2 - All automobile changes speed as shown. Find its...Ch. 4.2 - A dragster starts from rest and reaches a speed of...Ch. 4.2 - A car accelerates from 25 mi/h to 55 mi/h in 4.5...Ch. 4.2 - A train accelerates from 10km/h to 110km/h 2 min...Ch. 4.2 - A plane a accelerates at 30.0 ft/s2 for 3.30 s....Ch. 4.2 - A plane a accelerates at 30.0 ft/s2 for 3.30 s....Ch. 4.2 - A rocket accelerates at 10.0 m/s2 from rest...Ch. 4.2 - A rocket accelerates at 10.0 m/s2 from rest...Ch. 4.2 - How long (in seconds) does it take for a rocket...Ch. 4.2 - What is the acceleration of a road grader that...Ch. 4.2 - What is the acceleration of a compactor that goes...Ch. 4.2 - How long (in seconds) does it take for a truck...Ch. 4.2 - How long (in seconds) does it take for a car...Ch. 4.2 - A bullcozer accelerates from rest to 3.03 m/s in...Ch. 4.2 - A pickup truck pulling a trailer accelerates at...Ch. 4.2 - The speed of a delivery van increases from 2.00...Ch. 4.2 - A go-cart roils backward down a driveway. We...Ch. 4.2 - A stock car is moving at 25.0 m/s when the driver...Ch. 4.2 - If the car in Problem 23 took twice as long to...Ch. 4.2 - If the car in Problem 23 was going twice as fast...Ch. 4.2 - If the car in Problem 23 was going twice the speed...Ch. 4.3 - Substitute in the given equation and find the...Ch. 4.3 - Substitute in the given equation and find the...Ch. 4.3 - Substitute in the given equation and find the...Ch. 4.3 - Substitute in the given equation and find the...Ch. 4.3 - Substitute in the given equation and find the...Ch. 4.3 - The average velocity of a mini-bike is 15.0 km/h....Ch. 4.3 - A sprinter starting from rest reaches a final...Ch. 4.3 - A coin is dropped with no initial velocity. Its...Ch. 4.3 - A front endloader accelerates from rest to 1.75...Ch. 4.3 - A mechanic test driving a cat that she has just...Ch. 4.3 - A rocket lifting off from earth has an average...Ch. 4.3 - The final velocity of a truck is 74.0 ft/s. If it...Ch. 4.3 - A truck accelerates from 85 km/h to 120km/h in 9.2...Ch. 4.3 - How long does it take a rock to drop 95.0 m from...Ch. 4.3 - An aircraft with a landing speed of 295 km/h lands...Ch. 4.3 - A ball is thrown downward from the top of a...Ch. 4.3 - A car is traveling at 70km/h. It then uniformly...Ch. 4.3 - A car is traveling at 60km/h. It then accelerates...Ch. 4.3 - A rock is dropped from a bridge to the water...Ch. 4.3 - A bullet is fired vertically upward from a gun and...Ch. 4.3 - A bullet is fired vertically upward from a gun...Ch. 4.3 - A rock is thrown down with an initial speed of...Ch. 4.3 - John stands at the edge of a deck that is 25.0 m...Ch. 4.3 - John stands at the edge of a deck that is 40.0 m...Ch. 4.3 - John is standing on a steel beam 255.0 ft above...Ch. 4.3 - Kurt s standing on a steel beam 275.0 ft above the...Ch. 4.3 - One ball is dropped from a cliff. A second bail is...Ch. 4.3 - A car with velocity 2.00 m/s at t = 0 accelerates...Ch. 4.3 - A truck moving at 30.0 Km/h accelerates at a...Ch. 4.3 - A bus accelerates from rest at a constant 5.50...Ch. 4.3 - A motorcycle stows from 22.0 m/s to 3.00 m/s with...Ch. 4.4 - Find the horizontal range for each projectile with...Ch. 4.4 - Find the horizontal range for each projectile with...Ch. 4.4 - Find the horizontal range for each projectile with...Ch. 4.4 - Find the horizontal range for each projectile with...Ch. 4.4 - Find the horizontal range for each projectile with...Ch. 4.4 - Draw a conclusion about range and angles based on...Ch. 4.4 - Part or military training involves aiming and...Ch. 4.4 - A faulty fireworks rocket launches but never...Ch. 4.4 - An outfielder throws a baseball at a speed of...Ch. 4.4 - A bearing rolls off a 1.40-m-high workbench with...Ch. 4.4 - A mechanics socket rolls off a 1.50-m-high bench...Ch. 4 - Velocity is a. the distance traveled per unit of...Ch. 4 - A large heavy rock and a small marble are dropped...Ch. 4 - One ball1s thrown horizontally while another is...Ch. 4 - At what launch angle with the ground does a...Ch. 4 - Where in a projectiles path would its speed be the...Ch. 4 - Explain your answer to Question 2. 2. A large...Ch. 4 - Explain your answer to Question 3. 3. One ball1s...Ch. 4 - Distinguish between velocity and speed.Ch. 4 - Is velocity always constant?Ch. 4 - Why are vectors important in measuring motion?...Ch. 4 - Give three familiar examples of acceleration.Ch. 4 - Distinguish among acceleration, deceleration, and...Ch. 4 - State the values of the acceleration due to...Ch. 4 - A boat travels at 17.0 mi/h for 1.50 h. How far...Ch. 4 - A commercial jet flies at 550 mi /h for 3000mi....Ch. 4 - A plane flies north at 215 km/h. A wind from the...Ch. 4 - A glider flies southeast (at 320.0) at 25.0 km/h....Ch. 4 - A runner starts from rest and attains 8 speed of 8...Ch. 4 - A race car goes from rest to 150 km/h with an...Ch. 4 - A sailboat has an initial velocity of 10.0 km/h...Ch. 4 - A skateboarder starts from rest and accelerates at...Ch. 4 - A plane has an average velocity of 500km/h How...Ch. 4 - A train has a final velocity of 110 km/h. It...Ch. 4 - A boulder is rolling down a hill at 8.00 m/s...Ch. 4 - A truck accelerates from rest to 120 km/h in 13 s....Ch. 4 - An airplane reaches a velocity of 71.0 m/s when it...Ch. 4 - An airplane accelerates at 3.00 m/s2 from a...Ch. 4 - A bullet is fired vertically upward and reaches a...Ch. 4 - A rock is thrown down with an initial speed of...Ch. 4 - A shot put is hurled at 9.43 m/s at an angle of...Ch. 4 - An archer needs to hit a bulls eye on a target at...Ch. 4 - Amy walks at an average speed of 1.75 m/s toward...Ch. 4 - A novice captain is pointing his ferryboat...Ch. 4 - Anette is a civil engineer and needs to determine...Ch. 4 - As a movie stunt coordinator, you need to be sure...Ch. 4 - As a newspaper delivery boy, Jason needs to know...
Additional Science Textbook Solutions
Find more solutions based on key concepts
17. A car traveling at 30 m/s runs out of gas while traveling up a 5.0º slope. How far will it coast before sta...
College Physics: A Strategic Approach (4th Edition)
Suppose David puts a 0.50-kg rock into a sling of length 1.5 m and begins whirling the rock in a nearly horizon...
Physics for Scientists and Engineers with Modern Physics
Due to the light absorbed by Earth’s surface that was emitted by Earth’s atmosphere, is Earth’s temperature nea...
Lecture- Tutorials for Introductory Astronomy
1. When is energy most evident?
Conceptual Physics (12th Edition)
During the isobaric expansion from A to B represented below, 130 J of heat are removed from the gas. What is th...
University Physics Volume 2
4. If you were standing directly at the earth’s north magnetic pole, in what direction would a compass point if...
College Physics: A Strategic Approach (3rd Edition)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- In the winter sport of bobsledding, athletes push their sled along a horizontal ice surface and then hop on the sled as it starts to careen down the steeply sloped track. In one event, the sled reaches a top speed of 9.2 m/s before starting down the initial part of the track, which is sloped downward at an angle of 6.0°. What is the sled’s speed after it has traveled the first 100 m?arrow_forwardA car drives horizontally off of a cliff at a speed of 17.8 m/s. The car lands 6.88 m from the base of the cliff. Assuming air-resistance can be ignored, how tall is the cliff?arrow_forwardIn the winter sport of bobsledding, athletes push their sled along a horizontal ice surface and then hop on the sled as it starts to careen down the steeply sloped track. In one event, the sled reaches a top speed of 9.2 m/sm/s before starting down the initial part of the track, which is sloped downward at an angle of 5.0 degrees. What is the sled's speed after it has traveled the first 140 m?arrow_forward
- A skier is at the top of a hill with height h. Starting from rest, the skier goes down to a flat area. On this flat area, there is a section of the slope with length D where the snow has melted (there is friction here). After passing the melted section, the skier goes up a smaller hill of height h2. At the top of this hill there is a drop off and the skier launches off of it with a horizontal speed. At what horizontal distance from the base of the jump does the skier land?arrow_forwardIn the vertical jump, an Kobe Bryant starts from a crouch and jumps upward to reach as high as possible. Even the best athletes spend little more than 1.00 s in the air (their "hang time"). Treat Kobe as a particle and let ymax be his maximum height above the floor. Note: this isn't the entire story since Kobe can twist and curl up in the air, but then we can no longer treat him as a particle. Hint: Find v0 to reach y_max in terms of g and y_max and recall the velocity at y_max is zero. Then find v1 to reach y_max/2 with the same kinematic equation. The time to reach y_max is obtained from v0=g (t), and the time to reach y_max/2 is given by v1-v0= -g(t1). Now, t1 is the time to reach y_max/2, and the quantity t-t1 is the time to go from y_max/2 to y_max. You want the ratio of (t-t1)/t1 Note from Asker: I am generally confused on how to manipulate the formulas, so if you could show every step that would be great, Thank You. Part A Part complete To explain why…arrow_forwardA stone is thrown with an initial speed of 20 m/s at an angle of 35° above the horizontal from the top of a 53 m building. What is the speed of the rock as it strikes the ground (ignore air resistance).arrow_forward
- A skier with a mass of 63.0 kg starts from rest and skis down an icy slope that has a length of 53.0 m at an angle of 32 degrees with respect to the horizontal. At the bottom of the slope, the path levels out and becomes horizontal, the snow becomes less icy, and the skier begins to slow down, coming to rest in a distance of 122m along the horizontal path. What is the speed of the skier at the bottom of the slope? What is the coefficient of kinetic friction between the skier and the horizontal surface?arrow_forwardA person launches a rock with an initial speed of 250 m/s at an angle of 45 degrees above the horizontal. What is the speed of the rock when it reaches its maximum height? Give your answer to 2 significant figures.arrow_forwardBefore jumping from the bridge, Martin throws his water bottle to a friend standing on the bank of the lake. The bridge is 7.0 m high. The friend is standing on the bank 15.0 m from the base of the bridge with their hand 1.0m above the ground. What speed must Martin throw the bottle horizontally for it to reach his friend's hand?arrow_forward
- A student stands at the edge of a cliff and throws a stone horizontally over the edge with a speed of 18.0 m/s. The cliff is 50.0 m above a flat, horizontal beach. How long after being released does the stone strike the beach below the cliff? With what x and y speed will the stone impact the ground?arrow_forwardA golf ball rolls off with an angle of - 15° from a cliff with an initial speed of Vj =13.5 m/s. The ball falls a vertical distance of h = 25.9 m into a lake below. How much time does the ball spend in the air?arrow_forwardHere is my problem: From the top of a cliff overlooking a lake, a person throws two stones, as shown in the drawing. The cliff is 15.4 m high. The two stones described have identical initial speeds of v0 = 18.0 m/s and are thrown at an angle θ = 26.7 °, one below the horizontal and one above the horizontal. What is the distance between the points where the stones strike the water? Neglect air resistance. I think I have the correct steps.. but can't seem to get the right answer. I would like someone to walk me through how to solve this.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Kinematics Part 3: Projectile Motion; Author: Professor Dave explains;https://www.youtube.com/watch?v=aY8z2qO44WA;License: Standard YouTube License, CC-BY