A child on a sled starts from rest at the top of a 15° slope. If the trip to the bottom takes 10.2 s how long is the slope? Assume that frictional forces may be neglected.

Explanation:

Given data

Angle α=15°

time taken t=10.2 s

To find

Length of slope

Solution

From ΣF=ma

answer: option c.

explanation:

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