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A particle is in circular motion with an...

A particle is in circular motion with an acceleration `alpha=0.2rads^(-2)`.
(a) What is the angular displacement made by the particle after 5 s?
(b) What is the angular velocity at 15 s?. Assume the initial angular velocity is zero.

Text Solution

Verified by Experts

Since the initial angular velocity is zero `(omega_(0)=0)`.
The angular displacement made by the particle is given by
`theta=omega_(o)t+(1)/(2)alphat^(2)`
`theta=(1)/(2)xx2xx10^(-1)xx25=2.5` rad
In terms of degree `theta=2.5xx57.17^(@)~~143^(@)`
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