Two particles of mass m and 2m moving in opposite direction collide elastically with velocities v and 2v respectively. Velocity of heavy particle after collision will be :
a) 3v
b) 2v
c) zero
d) v
Two particles of mass m and 2m moving in opposite direction collide elastically with velocities v and 2v respectively. Velocity of heavy particle after collision will be :
a) 3v
b) 2v
c) zero
d) v
