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A hoop ofradius r weights m kg. It rolls...

A hoop ofradius r weights m kg. It rolls-without sliding along a horizontal floor so that its centre of mass has a speed v m/s How much work has to be done to stop it?

A

`(1)/(2)mv^(2)`

B

`mv^(2)`

C

`2mv^(2)`

D

`(1)/(3)mv^(2)`

Text Solution

Verified by Experts

The correct Answer is:
B
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