A trolley of mass 360 kg is lying on a horizontal frictionless surface. A mas of mass 40 kg runs with uniform speed on the trolley by a distance of 2m in 0.5 second. What is the velocity of the trolley relative to earth ?

A trolley of mass 360 kg is lying on a horizontal frictionless surface

1.	A trolley of mass 360 kg is lying on a horizontal frictionless surface. A mas of mass 40 kg runs with uniform speed on the trolley by a distance of 2m in 0.5 second. What is the velocity of the trolley relative to earth ?
Answer» 0.8 m/s 0.4 m/s 1.6 m/s 2.2 m/s ANSWER :B