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Q.

Assertion (A) : A body is momentarily at rest at that instant it reverses the direction 
Reason (R): A body can’t have acceleration if its velocity is zero at a given instant of time
 

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a

Both A and R are true and R is correct explanation of A

b

Both A and R are true and R is not correct explanation of A

c

A is true and R is false

d

A is false and R is true

answer is C.

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Detailed Solution

When a particle is released from rest, v=0 but a≠0

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