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Misconceptions

A particle in...

Question

A particle in one dimensional motion with zero spped may not have non - zero acceleration at that instant. Justify.

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Solution

When we throw a ball in vertically upward direction, velocity at highest point is zero but acceleration is not zero which is acceleration due to gravity.

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Similar questions

Q. Assertion :A particle may be momentarily at rest and yet have non-zero acceleration Reason: The zero velocity of a particle at any instant does not necessarily imply zero acceleration at that instant.

Q. Statement-1: A particle in motion may not have variable speed but constant velocity.
Statement-2: A particle in motion may not have non-zero acceleration but constant velocity.

An object may have :-

A) varying speed without having varying velocity.

B) varying velocity without having varying speed.

C) non zero acceleration without having varying velocity.

D) non zero acceleration without having varying speed.

Explain your answer.

Q. Choose the correct option:
i. Accelerated motion means acceleration and velocity have same direction.
ii. It is possible that particle have zero acceleration with non-zero velocity.
iii. When acceleration of the particle is positive, it is under accelerated motion.

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