Two partical moving in the same direction with speeds `4 m//s` and `2m//s` collide elastically (the collision being head on). After collision , the velocity of first partical becomes `3 m//s` in the same direction . The velocity of the second sound be

Two particle moving in the same direction with speeds 4 m//s and 2m//s collide elastically (the collision being head on). After collision , the velocity of first particle becomes 3 m//s in the same direction . The velocity of the second should be

Two objects of masses 100g and 200g are moving along the same line in the same line in the same direction with velocities of 2m//s and 1m//s , respectively. They collide and after the collison, the first object moves at a velocity of 1.67 m//s in the same direction. Determine the velocity of the second object.

Two objects of masses 100g and 200g are moving along the same line in the same direction with velocities of 2m//s and 1m//s , respectively. They collide and after the collison, the first object moves at a velocity of 1.67 m//s in the same direction. Determine the velocity of the second object.

A railway carriage of mass 10g and 200g are moving along the same line in the same direction with velocities of 2m//s and 1m//s respectively. They collide and after the collison, the first object moves with a velocity of 1.67m//s in the same direction. Determine the velocity of the second object.

Two objects of masses 100 g and 200 g are moving along the same line and direction with velocities of 2 m/s and 1 m/s, respectively. They collide and after the collision , the first object moves at a velocity of 1.67 m /s Determine the velocity of the second object.

Two objects of masses 100 g and 200 g are moving along the same line and direction with velocities of 2 m/s and 1 m/s, respectively. They collide and after the collision, the first object moves at a velocity of 1.67 m/s. Determine the velocity of the second object.

Two identical balls moving in opposite directions with speed 20 m/s and 25 m/s undergo head on perfectly inelastic collision. The speed of combined mass after collision is

Two identical balls moving in opposite directions with speed 20 m/s and 25 m/s undergo head on perfectly inelastic collision. The speed of combined mass after collision is