Two particles `p` and `q` located at distances `r_p` and `r_q` respectively from the centre of a rotating disc such that `r_p gt r_q`.

Options

A. Both P and Q have the same acceleration
B. BothP and Q do not have any acceleration
C. P has greater acceleration than Q
D. Q has greater acceleration than P

Answer

C

Explanation

Angular velocity and angular acceleration of every particle of disc is same
`a_(p)=r_(P)sqrt(alpha^(2)+omega^(2)), a_(Q)=r_(Q)sqrt(alpha^(2)+omega^(4))`
`:' r_(P) gt r_(Q) rArr a_(P) gt a_(Q)`