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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A smooth sphere A of mass m collides elasticity with an identical sphereB at rest. The velocity of A before collision is 10 m/s in a direction making 60 degree with the lines of centres at the time of impact.

A smooth sphere A of mass m collides elasticity with an identical sphereB at rest. The velocity of A before collision is 10 m/s in a direction making 60 degree with the lines of centres at the time of impact.

A glass ball collides with a smooth horizontal surface (xz plane) with a velocity V=ai-bj. If the coefficient of restitution of collision be e the velocity of the ball just after the collision will be