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Angular Displacement

In which of t...

Question

In which of the following cases forces may not be required to keep the

A

Particle going in a circle

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B

Particle going along a straight line

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C

The momentum of the particle constant

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D

Acceleration of the particle constant

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Solution

The correct option is C
The momentum of the particle constant

If momentum remains constant then force will be zero because
$F = \frac{d P}{d t}$

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