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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > Two blocks A and B of masses m and 2m respectively are placed on a smooth floor. They are connected by a spring. A third block C of mass m moves with a velocity v0 along the line joing A and B and collides elastically with A, as shown in figure. At a certain instant of time t0 after collision, it is found that the instantaneous velocities of A and B are the same.

Two blocks A and B of masses m and 2m respectively are placed on a smooth floor. They are connected by a spring. A third block C of mass m moves with a velocity v0 along the line joing A and B and collides elastically with A, as shown in figure. At a certain instant of time t0 after collision, it is found that the instantaneous velocities of A and B are the same.

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