A smooth sphere of mass m strikes a second sphere of mass 2m which is at rest. After the collision, their directions of motion are at right angles. Then coefficient of restitution is-

A sphere of mass m , impinges obliquely on a sphere, of mass M, which is at rest. Show that, if m=eM , the directions of motion of the sphere after impact are at right angles.

A ball of mass m moving at a speed v collides with another ball of mass 3m at rest. The lighter block comes to rest after collisoin. The coefficient of restitution is

A body of mass m strikes a stationary block of mass M and comes to rest. T he value of the coefficient of restitution is ?

A block of mass m moving at speed upsilon collides with another block of mass 2 m at rest. The lighter block comes to rest after the collision. Find the coefficient of restitution.

Two masses 'm' and '2m' are placed in fixed horizontal circular smooth hollow tube as shown. The mass 'm' is moving with speed 'u' and the amss '2m' is stationary . After their first collision, the time elapsed for next collision. ( coefficient of restitution e=1//2)

A smooth sphere of mass M moving with velocity u directly collides elastically with another sphere of mass m at rest. After collision their final velocities are V and v respectively. The value of v is

A smooth sphere of mass M moving with velocity u directly collides elastically with another sphere of mass m at rest. After collision their final velocities are V and v respectively. The value of v is

A sphere P of mass m moving with velocity u collides head on with another sphere Q of mass m which is at rest . The ratio of final velocity of Q to initial velocity of P is ( e = coefficient of restitution )

A wedge of mass M is kept at rest on smooth surface a particle of mass m hits the wedge normally. Find the velocity of wedge and particle just after collision. Take coefficient of restitution as e .

A ball moving with a speed of 9m//s strikes an identical ball at rest, such that after the collision, the direction of each ball makes an angle of 30^(@) with the original line of motion. Find the speeds of the two balls after collision.