A small smooth disc of mass m and radius r moving with an initial velocity v along the positive x-axis collided with a big disc of mass 2m and radius 2r which was initially at rest with its center at origin as shown in the figure. If the coefficient of restitution is 0, then the velocity of the larger disc after the collision is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
The larger disc will move along line of impact
As e = 0, so velocity of larger disc
Velocity of larger disc
(from the figure we can calculate 
)
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