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11 Jan 2022
Given information
It is given that the height of hill is .
A child of mass slides starting from rest at the top to the bottom of hill hence initial velocity .
There is friction and coefficient of friction is given by .
Step-by-step explanation
Step 1.
The free body diagram of child of mass m sliding from the top of the sled is drawn and all the forces acting of the child is marked in the diagram
represents the angle of hill
Frictional force do work over a distance (slanting height)
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