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
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
University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter8: Potential Energy And Conservation Of Energy
Section: Chapter Questions
Problem 81AP: Repeat the preceding problem, but this time, suppose that the work done by air resistance cannot be...
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The net work done on an object may be determined by a combination of
(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
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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