Two perfectly elastic balls of same mass m are moving with velocities u1 and u2. They collide elastically n times. The kinetic energy of the system finally is
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a
b
c
d
answer is C.
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Detailed Solution
In elastic collision there is no loss of KE. Therefore, initial KE equal to final KE
Two perfectly elastic balls of same mass m are moving with velocities u1 and u2. They collide elastically n times. The kinetic energy of the system finally is