Center of MassHard
Question
Two identical billiard balls are in contact on a table. A third identical ball strikes them symmetrically and comes to rest after impact. The coefficient of restitution is :
Options
A.2/3
B.1/3
C.1/6
D.√3/2
Solution
In x direction : Applying conservation of momentum
mu = 2mvcos30
v =
Also e =
∴ e =
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