Two balls of mass m and 2m each have momentum 2P and P in the direction show in figure. During collision they exert an impulse of magnitued P on each other. Match the following.

Answer

(A) `rarr` q; (B) `rarr` p; (C ) `rarr` s

Explanation

Impulse `=` change in omomentum
(A) For body `M : p = |vec(P)_(f) - vec(P)_(t)| rArr p_(1) = p`
(B) For body `2M : p = |vec(p)_(f) - vec(p)_(t)| rArr p_(f) = 2p`
(C ) `e = (v_(2) - v_(1))/(u_(1) - u_(2)) rArr ((p)/(M) - (p)/(M))/((2p)/(M) - (p)/(2M)) = 0 rArr e = 0`