Answered: The net work done on an object may be…

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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The net work done on an object may be determined by a combination of kinematics and dynamics or by the work-kinetic energy theorem. In this problem, we will first use kinematics and dynamics to determine the net work done on an object [parts (a), (b), and (c)], then we will use the work-kinetic energy theorem [part (d) and (e)] to again determine the net work done on the object. A bullet with a mass of 14.5 g is accelerated along the length of a 73.5 cm long rifle barrel from rest to a speed of 825 m/s. Determine the following.

(a) the magnitude of the acceleration of the bullet as it travels along the rifle barrel (Assume the acceleration of the bullet is constant.)
km/s²

(b) the magnitude of the net force acting on the bullet as it travels along the rifle barrel
kN

(c) net work of the bullet done as it travels along the rifle barrel
kJ

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