A ball of mass m moving with a speed 
collides head-on with an identical ball at rest. If e is the coefficient of restitution, then what will be the ratio of velocity of two balls after collision?
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
: According to the law of conservation of linear momentum, we get
Where 
are the velocities of the balls after collision.
….(i)
By definition of coefficient of restitution
……(ii)
Adding (i) and (ii), we get
Subtract (ii) from (i), we get
Their corresponding ratio is
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