State with reason if it is possible or impossible for an object in motion to have zero speed at instant but non zero acceleration at the same time
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Answer:
Yes, it's possible to have zero speed while accelerating.
Explanation:
Acceleration is the rate at which an object's speed and direction are changing with time, so whenever an object passes through zero speed as it reverses directions it has a non-zero acceleration but a speed of zero.
EXAMPLE :-
A rock thrown straight up in the air has a constant, nonzero acceleration due to gravity for its entire flight. However, at the highest point it momentarily has a zero velocity.
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