10th Edition

ISBN: 9780321902788

Author: Hugh D. Young, Philip W. Adams, Raymond Joseph Chastain

Publisher: PEARSON

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Textbook Question

Chapter 4, Problem 5MCP

A rocket firing its engine and accelerating in outer space (no gravity, no air resistance) suddenly runs out of fuel. Which of the following best describes its motion after burnout?

A. It continues to accelerate at the same rate.
B. It continues to accelerate but at a gradually decreasing rate, until it reaches a constant velocity.
C. It immediately stops accelerating, and continues moving at the velocity it had when burnout occurred
D. It immediately begins slowing down and gradually approaches zero velocity.

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Chapter 4, Problem 4MCP

Chapter 4, Problem 6MCP

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A block of mass m₁ = 10.0 kg is connected to a block of mass m₂ 34.0 kg by a massless string that passes over a light, frictionless pulley. The 34.0-kg block is connected to a spring that has negligible mass and a force constant of k = 200 N/m as shown in the figure below. The spring is unstretched when the system is as shown in the figure, and the incline is frictionless. The 10.0-kg block is pulled a distance h = 22.0 cm down the incline of angle = 40.0° and released from rest. Find the speed of each block when the spring is again unstretched. Vm1 × 1.32 Vm2 = 1.32 × m/s m/s

A block of mass m₁ = 10.0 kg is connected to a block of mass m₂ = 34.0 kg by a massless string that passes over a light, frictionless pulley. The 34.0-kg block is connected to a spring that has negligible mass and a force constant of k = 200 N/m as shown in the figure below. The spring is unstretched when the system is as shown in the figure, and the incline is frictionless. The 10.0-kg block is pulled a distance h = 22.0 cm down the incline of angle 0 = 40.0° and released from rest. Find the speed of each block when the spring is again unstretched. m/s Vm1 Vm2 m/s mi m2 k i

Truck suspensions often have "helper springs" that engage at high loads. One such arrangement is a leaf spring with a helper coil spring mounted on the axle, as in the figure below. The helper spring engages when the main leaf spring is compressed by distance yo, and then helps to support any additional load. Consider a leaf spring constant of 5.45 × 105 N/m, helper spring constant of 3.60 × 105 N/m, and y = 0.500 m. Truck body Dyo Axle (a) What is the compression of the leaf spring for a load of 4.90 × 105 N? m (b) How much work is done compressing the springs? ]

Chapter 4 Solutions

College Physics (10th Edition)

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Ch. 4 - If you drop a 10 lb rock and a 10 lb pillow from...Ch. 4 - Which feels a greater pull due to gravity, a heavy...Ch. 4 - When youre driving on the freeway its necessary to...Ch. 4 - The accelerations due to gravity near the surfaces...Ch. 4 - A golfer tees off and hits the ball with a mighty...Ch. 4 - Three books are at rest on a horizontal table, as...Ch. 4 - A rocket firing its engine and accelerating in...Ch. 4 - A person pushes horizontally with constant force P...Ch. 4 - Suppose the sun. including its gravity, suddenly...Ch. 4 - Three weights hang by very light wires as shown in...Ch. 4 - A woman normally weighs 125 lb. If she is standing...Ch. 4 - A worker pushes horizontally on a 2000 N...Ch. 4 - Far from any gravity, an astronaut accidentally...Ch. 4 - A worker pulls horizontally on a crate on a rough...Ch. 4 - A person pushes two Poxes with a horizontal 100 N...Ch. 4 - | A warehouse worker pushes a crate along the...Ch. 4 - | Two dogs pull horizontally on ropes attached to...Ch. 4 - | A man is dragging a trunk up the loading ramp of...Ch. 4 - | BIO Jaw injury. Due to a jaw injury, a patient...Ch. 4 - | Workmen are trying to free an SUV stuck in the...Ch. 4 - A box rests. on a frozen pond, which serves as a...Ch. 4 - | In outer space, a constant force is applied to a...Ch. 4 - || A 68.5 kg skater Moving initially at 2.40 m/s...Ch. 4 - BIO Animal dynamics. An adult 68 kg cheetah can...Ch. 4 - || A 2 kg block sits at rest on a frictionless...Ch. 4 - A dock worker applies a constant horizontal force...Ch. 4 - | (a) What is the mass of a book that weighs 320 N...Ch. 4 - Superman throws a 2400 N boulder at an adversary....Ch. 4 - | BIO (a) How many newtons does a 150 lb person...Ch. 4 - | BIO(a) An ordinary flea has a mass of 210 g. How...Ch. 4 - | BIO Calculate the mass (in SI units) of (a) a...Ch. 4 - || A standard bathroom scale is placed on an...Ch. 4 - || At the surface of Jupiters moon lo, the...Ch. 4 - || A scientific instrument that weighs 85.2 N on...Ch. 4 - || Planet X! When venturing forth on Planet X, you...Ch. 4 - | You drag a heavy box along a rough horizontal...Ch. 4 - || A person pushes two boxes with a horizontal...Ch. 4 - | The upward normal force exerted by the floor is...Ch. 4 - | A person throws a 2.5 lb stone into the air with...Ch. 4 - | A tennis ball traveling horizontally at 22 m/s...Ch. 4 - || Two crates, A and S, sit at rest side by side...Ch. 4 - || A ball is hanging from a long string that is...Ch. 4 - | A person drags her 65 N suitcase along the rough...Ch. 4 - || A factory worker pushes horizontally on a 250 N...Ch. 4 - || A dock worker pulls two boxes connected by a...Ch. 4 - || A hospital order y pushes horizontally on two...Ch. 4 - | A uniform 25.0 kg chain 2.00 m long supports a...Ch. 4 - | A 60 kg circus performer is climbing up a rope...Ch. 4 - | A 275 N bucket is lifted with an acceleration of...Ch. 4 - || BIO Human biomechanics. World-class sprinters...Ch. 4 - || A chair of mass 12.0 kg is sitting on the...Ch. 4 - || BIO Human biomechanics. The fastest pitched...Ch. 4 - || You walk into an elevator, step onto a scale,...Ch. 4 - || A woman is standing in an elevator holding her...Ch. 4 - || An advertisement claims that a particular...Ch. 4 - || A rifle shoots a 4.20 g bullet out of its...Ch. 4 - || A parachutist relies on air resistance (mainly...Ch. 4 - As shown in Figure 4.40, force vector F1 always...Ch. 4 - || A spacecraft descends vertically near the...Ch. 4 - || BIO A standing vertical Jump, NFL player Gerald...Ch. 4 - || You leave the doctors office after your annual...Ch. 4 - || BIO Human biomechanics. The fastest served...Ch. 4 - || Extraterrestrial physics. You have landed on an...Ch. 4 - || Jumping to the ground. A 75.0 kg man steps off...Ch. 4 - BIO Forces on a dancers body. Dancers experience...Ch. 4 - BIO Forces on a dancers body. Dancers experience...Ch. 4 - BIO Forces on a dancers body. Dancers experience...Ch. 4 - BIO Forces on a dancers body. Dancers experience...

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