Particle A moving with a velocity 
experienced a head on collision with a stationary particle B of the same mass. As a result of collision, the kinetic energy of the system decreased by 
. The speed of particle A after collision in
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
By law of conservation of momentum
Now,
Now, 
So, 
Adding (i) & (ii), we get
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