A ball of mass m moving at a speed v makes a head on collision with an identical ball at rest. The kinetic energy of the balls after the collision is 3/4 of the original kinetic energy. Calculate the coefficient of restitution.
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
e = 
Sol.
= e ....(i)
mv 2 + mv 1 = mv ....(ii)
v 2 + v 1 = v
(i) + (ii) 2v 2 = v (e + 1)
v 2 = v 
and v 1 = 
k f = 
k i ⇒ 
v 2 
+ 
v 2 = 
v 2
e = 
Ans.
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