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A stationary wheel starts rotating about...

A stationary wheel starts rotating about its own axis at constant angular acceleration. If the wheel completes `50` rotations in first `2` seconds, then the number of rotations mades by it in next two seconds is

A

75

B

100

C

125

D

150

Text Solution

Verified by Experts

The correct Answer is:
D
`theta =2pi n, theta_(1)=2pi n_(1), alpha =(2theta_(1))/(t_(1)^(2))`
`theta_(2)=(1)/(2) alpha t^(2) , theta =theta_(2)-theta_(1), n=(theta)/(2pi)`
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