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25 Oct 2021
Given information
The initial velocity of the sled
The final velocity of the sled
The distance traveled by the sled before coming to rest
Mass of the child and the sled
Step-by-step explanation
Step 1.
The sled reaches the bottom of the hill with a velocity and travels a distance horizontally, and comes to rest. The force of friction acting between the sled and the surface on which it skids exerts a retarding force on the sled, which brings it to rest.
Third equation of motion:
From Newton's second law of motion:
Here, the acceleration of the sled is $a$ and the average force is .
Calculate the average acceleration of the sled as it comes to rest.
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