Question

A ball of mass m is attached to a cord of
length L, pivoted at point O, as shown in the
ball is released from rest at point A, swings
down and makes an inelastic collision with a
block of mass 2m kept on a rough horizontal
floor. The coefficient of restitution of
collision is e=2/3 and coefficient of friction
between block and surface is u. After
collision, the ball comes momentarily to rest
at C when cord makes an angle of 0 with the
vertical and block moves a distance of 3L/2
on rough horizontal floor before stopping.
The value of u and o are, respectively,
L
А A
2m​

Answer 1

Explanation:

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