Question

A disc is rolling (without slipping) on a horizontal surface. C is its centre and Q and P are two points equidistance from C. Let v_P, v_Q and v_C be the magnitudes of velocities of P, Q and C respectively

(a) v_Q > v_C > v_P 

(b) v_Q < v_C < v_P

(c) v_Q = v_P, v_C = 1/2v_P

(d) v_Q < v_C > v_p

Answer 1

Correct Option (a) v_Q > v_C > v_P 

Explanation :

The rolling (without slipping) about O is shown in figure. From figure OQ > OC > OP

We know that , v = rω

v_Q> v_C>v_P