A smooth sphere A is moving on a frictionless horizontal plane with angular speed `omega` and centre of mass velocity `upsilon`. It collides elastically and head on with an identical sphere B at rest. Neglect friction everywhere. After the collision, their angular speeds are `omega_A and omega_B` respectively. Then

A sphere is moving on a smooth surface with angular velocity omega and linear velocity v. If collides elastically with another identical sphere B kept at rest. Neglecting friction everywhere, let V_(A) and omega_(A) be linear and angular velocities of sphere A after the impact and let V_(B) and omega_(B) be the corresponding parameters for spehre B. Then

If a sphere of mass m moving with velocity u collides with another identical sphere at rest on a frictionless surface, then which of the following is correct ?

If a sphere of mass m moving with velocity u collides with another identical sphere at rest on a frictionless surface, then which of the following is correct ?

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