[" A steel ball of mass "m_(1)=1kg" moving with "],[" velocity "50m/s" collides with another ball of "],[" mass "m_(2)=200gm" lying on the ground."]

A steel ball of mass m_(1)=1kg moving with velocity 50ms^(-1) collides with another ball of mass m_(2)=200g lying on the ground. Due the collision, the KE is lost and their internal energies change equally and T_(1) and T_(2) are the temperature changes of masses m_(1) and m_(2) respectively. If the specific heat of steel is unity and J="4.18 J cal"^(-1) , then

A ball of mass 1kg moving with a velocity of 15m // s undergoes a head on elastic collision with another ball of unknown mass at rest, and rebound with a velocity of 10m//s . What is the mass of the other ball?

A ball of mass m_(1) moving with a certain speed collides elastically with another ball of mass m_(2) kept at rest . If the first ball starts moving in reversed direction after the impact then

A ball of mass 2kg moving with speed 5m/s collides directly with another ball of mass 3kg moving in the same direction with speed 4m/s. The coefficient of restitution is 2/3. Find the velocities of both ball after the collision.

A ball of mass 2kg moving with speed 5m/s collides directly with another ball of mass 3kg moving in the same direction with speed 4m/s. The coefficient os restitution is 2/3. Find the velocities of both ball after the collision.