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Name: A box with a mass (m) is 77 kilograms and is being pulled by a constan
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Description: A box with a mass (m) is 77 kilograms and is being pulled by a constant force (F) of 149 newtons at an angle of 18 degrees. The initial speed of the box is zero m/s. 1) Write an expression for the work done by force (F) as the moves a horizontal dist

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 39P: A sled of mass 70 kg starts from rest and slides down a 10 incline 80 m long. It then travels for 20...

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A box with a mass (m) is 77 kilograms and is being pulled by a constant force (F) of 149 newtons at an angle of 18 degrees. The initial speed of the box is zero m/s.

1) Write an expression for the work done by force (F) as the moves a horizontal distance d.

2) how much work was done in moving the block 6.7 meters?

3) what is the speed of the box when the magnitude of displacement is 6.7 m if the surface is frictionless?

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