Question

A particle moves along a circular path of radius 20cm with a constant angular acceleration of 4 rad/sec2. If initial angular speed of particle is 2rad/s2 then angular displacement of particle after 5sec will be?

Answer 1

Answer:

Initial angular velocity (wo) = 5 rad/s

Angular acceleration (\alpha) = 4 rad/s2

We need to find the angular displacement (\theta)...

From second equation of motion, we have:

\theta = \omega_{o}t +\frac{1}{2}\alpha t^{2}

Put the value of wo, \alpha and t (5 sec),

we get

\theta = 75^{o}

Explanation:

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