College Physics: A Strategic Approach (4th Edition)
4th Edition
ISBN: 9780134609034
Author: Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 4, Problem 54GP
Problems 49 through 61 describe a situation. For each problem, draw a motion diagram, a force identification diagram, and a free-body diagram.
50. A rocket is being launched straight up. Air resistance is not negligible.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
A projectile of mass 0.75 kg is shot straight up into the air with an initial speed of 20 m/s.
a. How high would it go if there were no air resistance?
b. If the projectile rises to a maximum height of 12 m, determine the magnitude of
the average force due to air resistance.
SA3. A block is given an initial velocity of 5.00 m/s up a frictionless 20.0° incline. How far
up the incline does the block slide before coming to rest?
SA4. A man is pulling a crate along a concrete floor. This time, let's be specific. The
crate has a mass of 100 kg and the man pulls with a force of 1 250 N. The coefficient of
friction between the crate and the floor is 0.2. What is the acceleration of the crate?
SA5. A horizontal force of 80 N is used to pull a 20 N wooden box moving toward the right
along a horizontal, wood surface as shown.
Calculate the magnitude of the frictional force acting on the box.
Determine the magnitude of the force acting on the box.
Determine the mass of the box.
Calculate the magnitude of the acceleration of the box.
A cart of mass 8.0kg was moved by applying two constant forces. Force 1 is 28.0N at 42.0 degrees, and Force 2 is 13.0N at 110 degrees. Initially, the cart has a velocity of (3.50i + 2.20j)m/s.
a. Express the two forces in unit-vector notation.b. Find the total force exerted on the cart.c. Find the angle at which the total force is applied.d. What is the acceleration of the cart?e. What is the cart's velocity after 5.0s?f. What is the position of the cart after 5.0s?g. What is the angle of the position after 5.0s?h. What is the total work done by the two applied forces?
Chapter 4 Solutions
College Physics: A Strategic Approach (4th Edition)
Ch. 4 - If an object is not moving, does that mean that...Ch. 4 - An object moves in a straight line at a constant...Ch. 4 - If you know all of the forces acting on a moving...Ch. 4 - Three arrows are shot horizontally. They have left...Ch. 4 - Prob. 5CQCh. 4 - Internal injuries in vehicular acci-dents may be...Ch. 4 - Heres a great everyday use of the physics...Ch. 4 - Prob. 8CQCh. 4 - Suppose you are an astronaut in deep space, far...Ch. 4 - Jonathan accelerates away from a stop sign. His...
Ch. 4 - Prob. 11CQCh. 4 - Prob. 12CQCh. 4 - Josh and Taylor, standing face-to-face on...Ch. 4 - A person sits on a sloped hillside. Is it ever...Ch. 4 - Walking without slipping requires a static...Ch. 4 - Figure 4.30 b showed a situation in which the...Ch. 4 - Prob. 17CQCh. 4 - Prob. 18CQCh. 4 - The tire on this drag racer is severely twisted:...Ch. 4 - Suppose that, while in a squatting position, you...Ch. 4 - A block has acceleration a when pulled by a...Ch. 4 - A 5.0 kg block has an acceleration of 0.20 m/s2...Ch. 4 - Tennis balls experience a large drag force. A...Ch. 4 - A group of students is making model cars that will...Ch. 4 - A person gives a box a shove so that it slides up...Ch. 4 - Prob. 26MCQCh. 4 - As shown in the chapter, scallops use jet...Ch. 4 - Prob. 28MCQCh. 4 - Prob. 29MCQCh. 4 - Dave pushes his four-year-old son Thomas across...Ch. 4 - Figure Q4.29 shows block A sitting on top of block...Ch. 4 - Whiplash injuries during an automobile accident...Ch. 4 - An automobile has a head-on collision. A passenger...Ch. 4 - In a head-on collision, an infant is much safer in...Ch. 4 - Problems 4 through 6 show two forces acting on an...Ch. 4 - Problems 4 through 6 show two forces acting on an...Ch. 4 - Problems 4 through 6 show two forces acting on an...Ch. 4 - Prob. 7PCh. 4 - Prob. 8PCh. 4 - A baseball player is sliding into second base....Ch. 4 - A jet plane is speeding down the runway during...Ch. 4 - A skier is sliding down a 15 slope. Friction is...Ch. 4 - A falcon is hovering above the ground, then...Ch. 4 - Figure P4.13 shows an acceleration-versus-force...Ch. 4 - A constant force applied to object A causes it to...Ch. 4 - A compact car has a maximum acceleration of 4.0...Ch. 4 - Prob. 16PCh. 4 - A constant force is applied to an object, causing...Ch. 4 - A man pulling an empty wagon causes it to...Ch. 4 - Prob. 19PCh. 4 - Scallops eject water from their shells to provide...Ch. 4 - Figure P4.21 shows an objects...Ch. 4 - Prob. 22PCh. 4 - Two children fight over a 200 g stuffed bear. The...Ch. 4 - Prob. 24PCh. 4 - Prob. 25PCh. 4 - Prob. 26PCh. 4 - Prob. 27PCh. 4 - Prob. 28PCh. 4 - Problems 27 through 29 show a free-body diagram....Ch. 4 - Problems 27 through 29 show a free-body diagram....Ch. 4 - Problems 27 through 29 show a free-body diagram....Ch. 4 - Prob. 32PCh. 4 - Problems 30 through 38 describe a situation. For...Ch. 4 - Problems 30 through 38 describe a situation. For...Ch. 4 - Problems 30 through 38 describe a situation. For...Ch. 4 - Problems 30 through 38 describe a situation. For...Ch. 4 - Problems 30 through 38 describe a situation. For...Ch. 4 - Prob. 38PCh. 4 - Problems 30 through 38 describe a situation. For...Ch. 4 - Problems 30 through 38 describe a situation. For...Ch. 4 - Prob. 41PCh. 4 - Prob. 42PCh. 4 - Three ice skaters, numbered 1, 2, and 3, stand in...Ch. 4 - A girl stands on a sofa. Identify all the...Ch. 4 - A car is skidding to a stop on a level stretch of...Ch. 4 - Squid use jet propulsion for rapid escapes. A...Ch. 4 - Prob. 47GPCh. 4 - Prob. 48GPCh. 4 - Prob. 49GPCh. 4 - Prob. 50GPCh. 4 - Prob. 51GPCh. 4 - Prob. 52GPCh. 4 - Problems 49 through 61 describe a situation. For...Ch. 4 - Problems 49 through 61 describe a situation. For...Ch. 4 - Problems 49 through 61 describe a situation. For...Ch. 4 - Prob. 56GPCh. 4 - Prob. 57GPCh. 4 - Problems 49 through 61 describe a situation. For...Ch. 4 - Problems 49 through 61 describe a situation. For...Ch. 4 - Prob. 60GPCh. 4 - Problems 49 through 61 describe a situation. For...Ch. 4 - Problems 49 through 61 describe a situation. For...Ch. 4 - Problems 49 through 61 describe a situation. For...Ch. 4 - Problems 49 through 61 describe a situation. For...Ch. 4 - A bag of groceries is on the back seat of your car...Ch. 4 - A car has a mass of 1500 kg. If the driver applies...Ch. 4 - Prob. 67GPCh. 4 - Prob. 69GPCh. 4 - Prob. 70GPCh. 4 - Prob. 71GPCh. 4 - The froghopper, champion leaper of the insect...Ch. 4 - A beach ball is thrown straight up, and some time...Ch. 4 - If your car is stuck in the mud and you dont have...Ch. 4 - Prob. 75MSPPCh. 4 - Prob. 76MSPPCh. 4 - If your car is stuck in the mud and you don't have...
Additional Science Textbook Solutions
Find more solutions based on key concepts
If acceleration is proportional to the net force or is equal to net force.
Conceptual Physics (12th Edition)
49. Which has stronger attractions among its submicroscopic particles: a solid at 25°C or a gas at 25°C? Explai...
Conceptual Physical Science (6th Edition)
13. A supply plane needs to drop a package of food to scientists working on a glacier in Greenland. The plane f...
Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (4th Edition)
(I) A rolling hall slows down because the normal force does not pass exactly through the cm of the ball, but pa...
Physics for Scientists and Engineers with Modern Physics
The rank of effective way of decreasing the centripetal acceleration.
Physics (5th Edition)
A 3.0-m-diametcr merry-go-round with rotational inertia 120kg m2 is spinning freely at 0.50 rev/s. Four 25-kg ...
Essential University Physics: Volume 1 (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
- A person lying in a bunk bed pushes a 5 kg block across the ceiling. He uses a force P of magnitude 80 N and angle θ = 70°. The coefficient of kinetic friction between the block and the ceiling is 0.4. a. Draw the free body diagram of the block. b. What is the magnitude and direction of the block’s acceleration?arrow_forwardtwo blocks with masses m1 and m2 connected by a massless cord that passes over a massless, frictionless pulley. When the system is released from rest, block 2 accelerates upward at 5.6 m/s2. If the mass of block 2 is 13.5, what is the mass of block 1? Express your answer in kg, to at least one digit after the decimal point.arrow_forwardAn astronaut named Johnny is driving to their rocket when they suddenly need to break. The car weighs 1900 lbs and is moving at 35 mi/hr when the astronaut slams on the breaks on dry road. Find the amount of time needed for the car to stop. Use k = 0.7. How many forces are present in the a direction? 1 It'll take the car 11.412 x seconds to stop.arrow_forward
- You are in charge of improving the safety of a carnival ride. The ride involves a 165 kg cart travelling at 13.1 the wall. m S toward a brick wall. The cart is supposed to stop at the last second just before it hits You want the cart to come to a complete stop within a time of 1.85 s. What force is required to stop the cart in this amount of time? F = N Based on the parts you have been provided, you are able to exert a force of 3820 N on the cart. What is the maximum initial speed that the cart could have and still stop within 1.85? Vmaximum = m Sarrow_forwardA teenager of mass m1 = 56 kg pushes backwards against the ground with his foot as he rides his skateboard. This exerts a horizontal force of magnitude F foot = = 18.5 N. The skateboard has m2 = 2.6 kg. a. Write an expression for the magnitude of the horizontal component of force that the ground exerts on the teenagers foot, F ground. b. Write an expression in terms to given quantities for the magnitude of the skateboard acceleration, a , while the teenager is pushing backwards on the ground? c. What is the numerical value of the magnitude of the acceleration, a, in m/s square?arrow_forwardA stuntman drives a car of mass 1125 kg east with a speed of 20 m/s. a. If the car accelerates at a rate of –2 m/s 2 , how long will it take the car to go 50 m? b. The stuntman drives the car off an 80 m cliff while going 15 m/s. How long will it take the car to land? c. How far horizontally from the cliff will the car land?arrow_forward
- Two blocks are connected by a string. The inclination of the ramp is θ, while the masses of the blocks are m1 and m2. Friction is negligible. 1. Write an equation for the magnitude of the acceleration the two blocks experience. Give your equation in terms of m1, m2, θ, and the acceleration due to gravity g. 2. Write an equation for the tension in the string in terms of m1, the acceleration due to gravity g, and the acceleration of the two blocks a.arrow_forwardIn God of War, Kratos pushes a canoe with his son in it across the sand towards water. Kratos applies a force of 751. N in the positive direction while friction causes a 395. N horizontal force is applied in the opposite direction. What is the net force on the boat?arrow_forwardIt takes the elevator in a skyscraper 5.0 s to reach its cruising speed of 12 m/s. A 65 kg passenger gets aboard on the ground floor. Part A What is the passenger's weight before the elevator starts moving? Express your answer with the appropriate units. Part B What is the passenger's weight while the elevator is speeding up? Express your answer with the appropriate units. Part C What is the passenger's weight after the elevator reaches its cruising speed? Express your answer with the appropriate units.arrow_forward
- 13. The figure shows a block of mass M on an inclined plane at an angle 0 with respect to the horizontal. There is friction between the block and inclined plane. When released from rest, the block accelerates down the inclined plane and travels a distance d along the surface. What is the expression for the final velocity of the block at the end of the inclined plane? M 2gd(sino + 4gcosf0) a. b. 2gd(cos) +H;sin0) c. V2gd(sino - Hgcos0) d. V2gd(cos0 – Hsino) e. gdsinearrow_forwardProblem 4. Boat in a lake. A boat floats in a lake. When the boat moves the force of resistance is proportional to the velocity of the boat. Initially the boat is at rest. A person walks from the stern to the bow of the boat. What will be the position of the boat long time after the person stopped moving?arrow_forwardYou have landed on an unknown planet, Newtonia, and want to know what objects will weigh there. You find that when a certain tool is pushed on a frictionless horizontal surface by a 12.9 N force, it moves 16.8 m in the first 2.20 s, starting from rest. You next observe that if you release this tool from rest at 10.0 m above the ground, it takes 2.78 s to reach the ground. 1. What does the tool weigh on Newtonia? 2. What would it weigh on Earth?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage Learning
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
Newton's Third Law of Motion: Action and Reaction; Author: Professor Dave explains;https://www.youtube.com/watch?v=y61_VPKH2B4;License: Standard YouTube License, CC-BY