A block weighing 10 N travels down a smooth curved track AB joined to a rough horizontal surface (figure). The rough surface has a friction coefficient of 0.20 with the block. If the block starts slipping on the track from a point 1.0 m above the horizontal surface, the distance it will move on the rough surface is:
Text Solution
Verified by ExpertsThe correct answer is:
A
W G + W f = 0 – 0
10 × 1 + W f = 0
10 – µmg x = 0
10 = (.2) (10) x, x = 5 m
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