[" A particle of mass "m" with an initial velocity ui collides perfectly elastically with a "m],[" moves with a velocity vi after collision,then,"v" is given by "]

A particle of mass m with an initial velocity u hati collides perfectly elastically with a mass 3 m at rest . It moves with a velocity vhatj after collision , then , v is given by :

A particle of mass m with an initial velocity u hati collides perfectly elastically with a mass 3 m at rest . It moves with a velocity vhatj after collision , then , v is given by :

A ball of mass m moving with velocity v collides head on elastically with another identical ball moving with velocity - V. After collision

A ball of mass m moving with velocity v collides head on elastically with another identical ball moving with velocity - V. After collision

A ball of mass M moving with a velocity v collides perfectly inelastically with another ball of same mass but moving with a velocity v in the opposite direction. After collision

A particle of mass m moving with velocity u collides elastically with a particle of mass 3m at rest. After collision the heavier particle moves with velocity.

A particle of mass m with an initial velocity u hati+2u hatj collides with a particle of mass 3m at rest. After collision, the two particles stick together and the combined particle moves with a velocity v hati+v' hatj . Which of the following is incorrect?

A particle of mass m with an initial velocity u hati+2u hatj collides with a particle of mass 3m at rest. After collision, the two particles stick together and the combined particle moves with a velocity v hati+v' hatj . Which of the following is incorrect?

A particle of mass m moving with velocity u collides elastically head on with a particle of mass 2m at rest. After collision the heavier particle moves with velocity?