Question

A person drags a 45.0-kg crate at constant velocity for a distance of 8.20 m across a horizontal floor by using a rope making a 30 degree angle above the horizontal. The coefficient of kinetic friction between the crate and floor is 0.250. Find the work done by friction. Give your answer in Joules. A. In the previous problem, find the work done by the rope. Give your answer in Joules.

Name: a person drags a 450 kg crate at constant velocity for a distance of 820 m across a horizontal floor by using a rope making a 30 degree angle above the horizontal the coefficient of kinetic 90544
Uploaded: 2022-06-21T11:41:19-08:00
Duration: 4 min 9 s
Channel: Khoobchandra Agrawal
Description: a person drags a 450 kg crate at constant velocity for a distance of 820 m across a horizontal floor by using a rope making a 30 degree angle above the horizontal the coefficient of kinetic 90544

          A person drags a 45.0-kg crate at constant velocity for a
distance of 8.20 m across a horizontal floor by using a rope
making a 30 degree angle above the horizontal. The coefficient of
kinetic friction between the crate and floor is 0.250. Find
the work done by friction. Give your answer in Joules.
A.  In the previous problem, find the work done by the
rope. Give your answer in Joules.

Added by Irene H.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Khoobchandra Agrawal

06/21/2022

Step 1

The force of friction is equal to the coefficient of kinetic friction times the normal force. The normal force in this case is the weight of the crate minus the vertical component of the force applied by the rope. The weight of the crate is its mass times the Show more…

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A person drags a 45.0-kg crate at constant velocity for a distance of 8.20 m across a horizontal floor by using a rope making a 30 degree angle above the horizontal. The coefficient of kinetic friction between the crate and floor is 0.250. Find the work done by friction. Give your answer in Joules. A. In the previous problem, find the work done by the rope. Give your answer in Joules.