Two objects of masses 100 g and 200 g are moving along the same line and direction with velocities of 2 `ms^(-1)` and 1 `ms^(-1)` respectively. They collide and after collection the first object moves at veloctiy 1.67 `ms^(-1)` determine the velocity of the second object.

Explanation

`m_(1) = 100 g V_(1) = 2 ms^(-1)`
`m_(2) = 200g V_(2) = 1ms^(-1)`
Total momentum before the coilsion
`m_(1)u_(1) + m_(2)u_(2) = m_(1)v_(1) + m_(2)v_(2)`
`0.2 + 0.2 = 0.167 + 0.2`
` 0.4 - 0.167 = 0.25 v_(2)`
`v_(2) = 1.165 m//s`