You can think of the work-energy theorem as a second theory of motion, parallel to Newton's laws in describing how outside influences affect the motion of an object. In this problem, solve parts (a), (b), and (c) separately from parts (d) and (e) so you can compare the predictions of the two theories. A bullet with mass of 15 grams is accelerated from rest to a speed of 780 m/s in a rifle barrel of length 72 cm. a) Calculate the bullet's kinetic energy when it leaves the barrel. b) Use the work-energy theorem to find the net work that is done on the bullet. c) Use your answer from part (b) to find the
You can think of the work-energy theorem as a second theory of motion, parallel to Newton's laws in describing how outside influences affect the motion of an object. In this problem, solve parts (a), (b), and (c) separately from parts (d) and (e) so you can compare the predictions of the two theories. A bullet with mass of 15 grams is accelerated from rest to a speed of 780 m/s in a rifle barrel of length 72 cm. a) Calculate the bullet's kinetic energy when it leaves the barrel. b) Use the work-energy theorem to find the net work that is done on the bullet. c) Use your answer from part (b) to find the
Physics for Scientists and Engineers with Modern Physics
10th Edition
ISBN:9781337553292
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter7: Energy Of A System
Section: Chapter Questions
Problem 25P: Review. You can think of the workkinetic energy theorem as a second theory of motion, parallel to...
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