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

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Description: 14. You can think of the work-energy theorem as a second theory of motion, parallel toNewton's laws in describing how outside influences affect the motion of an object. Inthis problem, solve parts (a), (b), and (c) separately from parts (d) and (e)

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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14. 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
magnitude of the average net force that acted on the bullet while it was in the barrel. d)
Now model the bullet as a particle under constant acceleration. Use the kinematic
equations to find the acceleration of the bullet. e) Use your answer from part (d) to find
the magnitude of the average net force that acted on the bullet while it was in the barrel.

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