Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (Chs 1-42) Plus Mastering Physics with Pearson eText -- Access Card Package (4th Edition)
4th Edition
ISBN: 9780133953145
Author: Randall D. Knight (Professor Emeritus)
Publisher: PEARSON
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Textbook Question
Chapter 11, Problem 4EAP
What is the impulse on a 3.0 kg particle that experiences the force shown in FIGURE EX11.4?
FIGURE EX11.4
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A 2000 kg car is being pushed from rest by a bulldozer. The car is pushed for 10
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impulse of 10,000 kgm/s.
a. What net force acts on the car?
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b. What is the acceleration of the car?
C. What is the work done by the non-conservative forces as the car moves
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A 2000 kg car is being pushed from rest by a bulldozer. The car is pushed for 10
seconds along a rough road with a coefficient of friction of 0.05. The car experiences an
impulse of 10,000 kgm/s.
a. What net force acts on the car?
b. What is the acceleration of the car?
c. What is the work done by the non-conservative forces as the car moves
along the road?
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A 100-kg particle moves with an initial velocity of (4.0i, - 6.0j) m/s. If its velocity changes to v = (3.0i – 8.0j) m/s by the action of a force, determine
The net work done on the particle. What principle would you use to solve this problem?
The impulse on the particle.
True or False: Impulse is equal to the rate of change of momentum.
Chapter 11 Solutions
Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (Chs 1-42) Plus Mastering Physics with Pearson eText -- Access Card Package (4th Edition)
Ch. 11 - Prob. 1CQCh. 11 - Prob. 2CQCh. 11 - \A 2 kg object is moving to the right with a speed...Ch. 11 - Prob. 4CQCh. 11 - Prob. 5CQCh. 11 - Angie, Brad, and Carlos are discussing a physics...Ch. 11 - Prob. 7CQCh. 11 - Automobiles are designed with “crumple zones”...Ch. 11 - A golf club continues forward after hitting the...Ch. 11 - Suppose a rubber ball collides head-on with a more...
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- A car crashes into a large tree that does not move. The car goes from 30 m/s to 0 in 1.3 m. (a) What impulse is applied to the driver by the seatbelt, assuming he follows the same motion as the car? (b) What is the average force applied to the driver by the seatbelt?arrow_forwardYou hold a slingshot at arms length, pull the light elastic band back to your chin, and release it to launch a pebble horizontally with speed 200 cm/s. With the same procedure, you fire a bean with speed 600 cm/s. What is the ratio of the mass of the bean to the mass of the pebble? (a) 19 (b) 13 (c) 1 (d) 3 (e) 9arrow_forwardIn a laboratory, a cart collides with a wall and bounces back. Figure P11.10 shows a graph of the force exerted by the wall versus time. a. Find the impulse exerted by the wall on the cart. b. What is the average force exerted by the wall on the cart? c. If the cart has a mass of 0.448 kg, what is its change in velocity? d. Make a sketch of the situation. Include a coordinate system and explain the significance of the signs in parts (a) through (c). FIGURE P11.10arrow_forward
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Impulse Derivation and Demonstration; Author: Flipping Physics;https://www.youtube.com/watch?v=9rwkTnTOB0s;License: Standard YouTube License, CC-BY