A block of mass 0.50 kg is moving with a speed of 2.00 m/s on a smooth surface. It strikes another mass of 1.00 kg and then they move together as a single body. The energy loss during the collision is

Options

A. `0.16 J`
B. `1.00 J`
C. `0.67 J`
D. `0.34 J`

Answer

C

Explanation

Energy loss `= (1)/(2)(m_(1) m_(2))/((m_(1) + m_(2)))(u_(1) - u_(2))^(2)`
`= ((0.5)(1))/(2[0.5 + 1]) (2 - 0)^(2) = (2)/(3) J`