consider two particles that unedergo an elastic collision on a fricationless surface as shown in fig 4E.45 one particle of mass `m_(2)` is at rest initially.

A particle A of mass m initially at rest slides down a height of 1.25 m on a frictionless ramp, collides with and sticks to an identical particles B of mass m at rest as shown in the figure. Then, particles A and B together collide elastically with particle G of mass 2m at rest. The speed of particle G after the collision with combined body (A+B) would be (Take, g =10 ms^(-2))

A body of mass m_(1) moving at a constant speed undergoes an elastic head on collision with a body of mass m_(2) initially at rest. The ratio of the kinetic energy of mass m_(1) after the collision to that before the collision is -

A uniform rod of mass M_(1) is hinged at its upper end as shown in the figure . A particle of mass M_(2) which is moving horizontally, strikes the rod elastically at its midpoint. If the particle comes to rest after collision then the value of (M_1)/(M_2) is