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Combined Forces

A block of ma...

Question

A block of mass m slides down a smooth vertical circular track. During the motion, the block is in
(a) vertical equilibrium
(b) horizontal equilibrium
(c) radial equilibrium
(d) none of these.

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Solution

(d) none of these.

The net force on the block is not zero, therefore the block will not be in any given equilibrium.

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