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Question

In uniform circular motion, which of the following quantity is always zero?

A
Change in magnitude of liner momentum
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B
Magnitude of change in velocity
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C
Magnitude of change in acceleration
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D
All of these
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Solution

The correct option is C Magnitude of change in acceleration
In uniform circular motion:
change in magnitude of velocity i.e. change in speed is zero
change in magnitude of acceleration is also zero (only direction changes)
since change in magnitude of velocity is zero therefore change in magnitude of linear momentum is also zero.
Hence, option D is correct

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