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A wheel is at rest. Its angular velocity...

A wheel is at rest. Its angular velocity increases uniformly and becomes 80 radian per second after 5 second. The total angular displacement is :-

A

800 rad

B

400 rad

C

200 rad

D

100 rad

Text Solution

Verified by Experts

The correct Answer is:
C
`omega = 80 " rad/sec",t=5 sec, omega_(@)=0`
`theta = ?`
If a constant, then
`theta=((omega + omega_(0))/(2))t=((80 +0)/(2))5 = 200 " rad"`
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