A rock takes 2.55 s to hit the ground when it is thrown straight up from the cliff with an initial velocity of 7.5 m/s. Calculate the height of the cliff in m. h= How long would it take to reach the ground if it is thrown straight down with the same speed? t=

A rock takes 2.55 s to hit the ground when it is thrown straight up from the cliff with an initial velocity of 7.5 m/s. Calculate the height of the cliff in m. h= How long would it take to reach the ground if it is thrown straight down with the same speed? t=

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter2: Kinematics

Section: Chapter Questions

Problem 47PE: (a) Calculate the height of a cliff if it takes 2.35 s for a rock to hit the ground when it is...

See similar textbooks

Related questions

Q: A motorist drives north for 35 minutes at 85 km per hour and then stops for 15 minutes. He then…

A: Given: The speed of the motorist in the first go is 85 km/h. The time duration is 35 min. The…

Q: Rocket-powered sleds are used to test the human response to acceleration. If a rocket powered sled…

A: Given Data : The final speed of the sled is given as v=467 ms The time taken by the sled to reach…

Q: A student drives 40 km south in an attempt to get to a science fair competition before realizing he…

A: As per our guidelines, we are supposed to answer only first one question in case of multiple…

Q: Calculate the height (in m) of a cliff if it takes 2.24 s for a rock to hit the ground when it is…

Q: The velocity time (v-t) graph is shown in Figure.1. Evaluate 25 (a) the acceleration for Line-A (b)…

Q: [#222] Match acceleration to velocity acceleration (m.s 2, time (s) The above graph shows the…

A: Given data: Acceleration vs the graph Required: Velocity vs time graph

Q: A car has acceleration of 1.20 m/s2 and starts from 2.50 m/s. What is its speed after 5.00 seconds,…

Q: A driver traveling north slows down from 30.1 m/s to 0 m/s in 6.5 seconds. What is the magnitude of…

A: Given data: Initial velocity (u) = 30.1 m/s Final velocity (v) = 0 m/s Time (t) = 6.5 seconds…

Q: A dog runs from points AA to BB to CC in 2.5 ss. (See the figure below.)(Figure attached) 1)…

Q: If it takes a horse 175 seconds to make 3.00 laps around a horse track (each lap is equal to 1.00…

A: Average velocity V = distance covered/time. V= r/t.

Q: 18. Which graph best represents a car traveling down the freeway at a constant speed? Time (sec)…

Q: You are driving home from school steadily at 99 km/h for 190 km . It then begins to rain and you…

A: Given data: Speed during first 190 km S1 = 99 km/h d1 = 190 km Speed after slowing S2 = 63 km/h…

Q: A jogger jogs around a circular track with a diameter of 225 m in 10. minutes. What was the jogger's…

Q: If a steel ball is tossed from the top of the Berj Khalifa in Dubai, the tallest building in the…

A: s(t) = 2717 - 16 t2a)put s(t) = 0 2717 = 16 t2t= 271716t = 13.03 seconds

Q: Calculate the height (in m) of a cliff if it takes 2.32 s for a rock to hit the ground when it is…

Q: VERSUS TIME X-VELOCITY VERSUS TIME GRAPH X-VELOCITY VERSUS TIME GRAPH Y-POSITION VERSUS TIME GRAPH

A: Consider a projectile projected at an angle θ with initial speed u,

Q: Answer time left: 01:51:42 * Please use the mouse to highlight where the specific question text is…

Q: A pilot flies in a straight path for 1 h 30 min. She then makes a course correction, heading 10…

Q: A cheetah accelerates from rest to a maximum velocity of 22.6 i m/s in 2.03 seconds, whilst running…

Q: If Hawkeye was able to travel 5km north in 6. hour in his car, what was the magnitude of his average…

Q: v (m/s) 20 I (s) 5 20 30

A: Given : Velocity at 5 s = 20 m/s Velocity at 20 s = 20 m/s Velocity at 30 s = 0 m/s

Q: 1. Mario throws a stone vertically upward with a speed of 25m/s from the top of a tower 75 m high.…

Q: A rocket accelerates from rest at a rate of 60 m/s 2. How long does it take for the rocket to reach…

Q: An object is moving at a steady slowdown until it stops. Cover in the fourth second before the last,…

A: Given, Distance covered in 4th second is 31.5 m and Distance covered in 3rd second is 45.5m

Q: A car is initially traveling at 17 m/s and accelerates to 30 m/s to pass a truck. If the car travels…

Q: JK drives her scooter 10 kilometres north. She stops for lunch and then drives 4 kilometres east.…

A: Given: The figure representation an be given as shown below:

Q: Velocity is measured in units of? choose all that apply: m/s^2, km/h^2, km/h, miles/minute,…

Q: 11. A steel ball is dropped from a height of 100 meters, and is accelerating due to gravity, which…

Q: a car accelerates from 16m/s to 25m/s in 5.8 s. What was its acceleration assuming it is constant?…

A: Given data : Initial velocity, u = 16 m/s Final velocity, v = 25 m/s Time, t = 5.8 s

Q: Mr. M turns while riding his bike. His initial velocity was 6.4m/s [E30.0S]. His final velocity was…

A: 1. According to the given question, When Mr. M riding his bike, his initial velocity is Vi = 6.4…

Q: Wile E. Coyote is chasing the roadrunner and falls off a cliff. It takes Wile E Coyote 7 long…

Q: A man drives a car in a straight line south along a highway. He travels with a velocity of 112.6…

A: Let a man travels the distance “d” in the southward direction. The expression for the velocity is…

Q: The equation for the motion of an object with constant acceleration is d= do + vt + at, where d is…

A: For car, Initial position, dc0 = 0 mInitial velocity, uc0 = 0 m/sAcceleration, a = 4 m/s2 For bus,…

Q: A rabbit runs across a parking lot. The coordinates of the rabbit's position (in meter) are given by…

A: Given : The x -coordinate of position vector is, x=12.3t The y-coordinate is, y=x22.4 The…

Q: An object undergoes a displacement of -4.54 m. If the final position of the object is 2.53 m, what…

Q: The motion of a long-distance runner is captured using a motion detector and displayed on the graph…

A: Given data: The position vs time graph Required: Distance traveled, velocity and acceleration

Q: Charlotte is driving at 70.6 mi/h and receives a text message. She looks down at her phone and takes…

A: Given: The speed of the car is 70.6 mi/h. The time interval is 4.63 s.

Q: Given a motion diagram. For the problem, write a one or two sentence “story” about a real object…

A: Given: The diagram shows the movement of Jerry. The length of arrow shows the magnitude of velocity.…

Q: A motor car takes 8 seconds to cover 40 m and 10 seconds to cover 56 m. If the motor car is running…

A: Assume that the car travels a distance of s1=40 m in time t1=8 s and additional distance of s2=56 m…

Q: What is the most appropriate equation to be used for problem given below? In Roger Federer's career,…

Q: A deer is running along the horizontal direction with a constant velocity of 14 m/s. The moment the…

A: Velocity of deer, v = 14 m/s time, t = 15 s initial velocity of tiger, u = 4.5 m/s

Q: Anthony walks to the pizza place for lunch. He walked 5 km East, then he realized he passed it and…

A: According to question we need to find the value of distance and displacement.

Q: A falling stone takes Δt = 0.38 s to travel past a window 2.2 m tall (see the (Figure 1)). From what…

Q: In 15 seconds, an automobile accelerates from rest to 48 miles per hour. For the first six seconds,…

Q: a stone ejected vertically upward from the ground with an initial velocity of 4 m/s. it hits the…

Q: A jogger jogs around a circular track with a diameter of 225 m in 16 minutes. What was the jogger's…

A: Given data: Diameter of circular track (d) = 225 m Time (t) = 16 minutes Required: The average…

Q: A jogger jogs around a circular track with a diameter of 375 m in 15 minutes. what was the joggers…

A: GivenDiameter of circular track d = 375mtime taken t = 15 minutes

Concept explainers

Distance and Speed

The speed, distance and time relation forms the basis of study of motion. You will need these concepts in the study of Mechanics. This concept is applicable for students who are studying the following courses –

Question

A rock takes 2.55 s to hit the ground when it is thrown straight up from the cliff with an initial velocity of 7.5 m/s.

Calculate the height of the cliff in m.

How long would it take to reach the ground if it is thrown straight down with the same speed?

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

Step 2

Step 3

Step 4

Trending now

This is a popular solution!

Step by step

Solved in 4 steps with 6 images

SEE SOLUTION Check out a sample Q&A here

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

(a) Calculate the height of a cliff if it takes 2.35 s for a rock to hit the ground when it is thrown straight up from the cliff with an initial velocity of 8.00 m/s. (b) How long would it take to reach the ground if it is thrown straight down with the same speed?
A motorist drives for 35.0 minutes at 85.0 km/h and then stops for 15.0 minutes. He then continues north, traveling 130. Km in 2.00 h. (a) What is his total displacement? (b) What is his average velocity?
A ball is thrown straight down with an initial speed of 2.0 m/s from a height of 15 m. What is the position of the ball after 3.0 s, in meters? Use g = 9.8 m/s2. Your answer needs to have 2 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement
A car starts from 2.0 m/s and accelerates at 4.0 m/s2 for 6.0 s, it coasts for 5.0 s, and then slows down at a rate of 2.0 m/s2 to a stop. How far has it traveled, in meters? Your answer needs to have 3 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement.
A jet accelerates at a constant rate from rest, traveling 900 m in 3.0 s. What is the magnitude of its acceleration, in m/s?? Your answer needs to have 2 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement.
A rock is tossed straight up with a speed of 25 m/s. When it returns, it falls into a hole 11 m deep. 1) What is the rock's velocity as it hits the bottom of the hole? Express your answer in meters per second. Enter positive value if the velocity is upward and negative value if the velocity is downward. 2) How long is the rock in the air, from the instant it is released until it hits the bottom of the hole? Express your answer in seconds.
A polar bear starts at the North Pole. It travels 1.0 km south, then 1.0 km east, and then returns to its starting point. This trip takes 0.75 hr. a) What was the bear's average speed? b) What was the bear's average velocity?
A person runs 800 m at an average speed of 6 m/s and then the next 800 m at an average speed of 8 m/s.a. Calculate the total time required.b. Find the average speed.
The Grand Canyon is 6000 feet deep at the deepest part. A rock is dropped from this height. (The acceleration due to gravity is -32 feet/sec2.) a. Express the height of the rock as a function of the time (in seconds). b. How long will it take the rock to hit the canyon floor? c. With what velocity does the rock hit the canyon floor? With what acceleration?
A stone is thrown vertically into the air at a velocity of 60 m/sec. After 4 seconds, another stone is thrown vertically into the air. a. Determine the time that the first ball has travelled in order to meet the second ball 120 m from the ground. Ans. t1 = 6.1 sec , t2 = 3.6 sec b. Determine the time that the second ball has travelled in order to meet the first ball 120 m from the ground. Ans. t3 = 5.7 sec c. What initial velocity must the second ball have in order to meet the first ball 120 m from the ground? Ans. V3 = 49 m/sec Please indicate the formula and what to find given value.
1. Leslie’s cat walks 4 meters east, 3 meters south, 2 meters west, and 9 meters north. What is the cat’s distance and displacement at the end of this walk? 2. Yesenia is driving her car north. In a period of 12.0 minutes, she covers a distance of 17.6 km. What is Yesenia’s average velocity in meters per second?
Starting from a pillar, you run 400 m east (+x direction) at an average speed of 4 m/s, and then run 560 m north (+y direction) at an average speed of 7 m/s to a post. Calculate your average speed from pillar to post. a.) 82 m/s b.) 5.33 m/s c.) Not enough information.