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If moment of inertia of a circular disc ...

If moment of inertia of a circular disc that makes 20 revolutions per second is 20 kg `m^(2)` . Its angular momentum in `kg m^(2)//s`

A

2513

B

400

C

200

D

1216

Text Solution

Verified by Experts

The correct Answer is:
A
`L = I 2 pi n = 20xx2xx314xx20` ltbgt `= 8xx314=2512 kgm^(2)//s`.
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