A man of 60   kg is running on the road and suddenly jumps into a stationary trolly car of mass 120   kg . Then the trolly car starts moving with velocity 2   m   s - 1 . The velocity of the running man was _____ m   s - 1 , when he jumps into the car.

Question

A man of 60 &#160; kg is running on the road and suddenly jumps into a stationary trolly car of mass 120 &#160; kg . Then the trolly car starts moving with velocity 2 &#160; m &#160; s - 1 . The velocity of the running man was _____ m &#160; s - 1 , when he jumps into the car.

Aicharya · Accepted Answer

Applying conservation of the momentum, m m u = m m + m t v &#8658; 60 u = 60 + 120 &#215; 2 &#8658; u = 6 &#160; m &#160; s - 1

A man of 60   kg is running on the road and suddenly jumps into a stationary trolly car of mass 120…

Solution

A man of 60 &#160; kg is running on the road and suddenly jumps into a stationary trolly car of mass 120…

Solution

A man of 60 kg is running on the road and suddenly jumps into a stationary trolly car of mass 120…