d A crate of mass 9.4 kg is pulled up a rough incline with an initial speed of 1.52 m/s. The pulling force is 102 N parallel to the incline, which makes an angle of 20.3° with the horizontal. The coefficient of kineticfriction is 0.400, and the crate is pulled 4.96 m.(a) How much work is done by the gravitational force on the crate?150.52 XDoes the gravitational force do positive or negative work on the crate? J(b) Determine the increase in internal energy of the crate-incline system owing to friction.171.41(c) How much work is done by the 102-N force on the crate?505.92(d) What is the change in kinetic energy of the crate?170.23Use energy ideas to find this result. This is much simpler than using Newton's laws. J(e) What is the speed of the crate after being pulled 4.96 m?6.2m/s

A crate of mass 9.4 kg is pulled up a rough incline with an initial speed of 1.52 m/s. The pulling force is 102 N parallel to the incline, which makes an angle of 20.3° with the horizontal. The coefficient of kineti friction is 0.400, and the crate is pulled 4.96 m. (a) How much work is done by the gravitational force on the crate? 150.52 x Does the gravitational force do positive or negative work on the crate? ) (b) Determine the increase in internal energy of the crate-incline system owing to friction. 171.41 J (c) How much work is done by the 102-N force on the crate? 505.92 (d) What is the change in kinetic energy of the crate? 170.23 Use energy ideas to find this result. This is much simpler than using Newton's laws. J

A crate of mass 9.4 kg is pulled up a rough incline with an initial speed of 1.52 m/s. The pulling force is 102 N parallel to the incline, which makes an angle of 20.3° with the horizontal. The coefficient of kineti friction is 0.400, and the crate is pulled 4.96 m. (a) How much work is done by the gravitational force on the crate? 150.52 x Does the gravitational force do positive or negative work on the crate? ) (b) Determine the increase in internal energy of the crate-incline system owing to friction. 171.41 J (c) How much work is done by the 102-N force on the crate? 505.92 (d) What is the change in kinetic energy of the crate? 170.23 Use energy ideas to find this result. This is much simpler than using Newton's laws. J

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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