Solve the give problem:
 
Two objects of masses \(120\ g\) and \(300\ g\) are moving along the same line and direction with velocities of \(2\ m\ s^{–1}\) and \(2\ m\ s^{–1}\), respectively. They collide and after the collision, the first object moves at a velocity of \(2.2\ m\ s^{–1}\). Determine the velocity of the second object.
 
From the law of conservation of momentum, We know that,
  
Velocity of the second object after the collision \(=\)  \(m\ s^{-1}\).
  
Important!
Note: Enter your answer with three decimal places