Q.

The correct statement from the following is

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a

A body having zero velocity will not necessarily have zero acceleration.

b

A body having zero velocity will necessarily have zero acceleration.

c

A body having uniform speed can have only uniform acceleration.

d

A body having nonuniform velocity will have zero acceleration.

answer is A.

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Detailed Solution

When a body is at rest, its velocity is zero, but  rate of change of velocity may not be zero, for example, when a body starts moving from rest, its velocity is zero but its acceleration is not zero.  again when a body is released from rest in the gravitaional field of earth, its initial velocity is zero, but its acceleration is 'g'
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