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A particle is revolving in a circle with...

A particle is revolving in a circle with increasing its speed uniformly. Which of the following is constant ?

A

centripetal acceleration

B

tangential acceleration

C

angular acceleration

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
C
Angular acceleration `(a)=(a_t)/(r )`
Since, `|veca_t|=(d|vecv|)/(dt)=`constant
Megnitude of `alpha` is constant
Also its direction is always constant (perpenducular to the plane of circular motion). Whereas direction chages continuously `veca_t` is not constant.
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