JEE Main Physics question
A man weighing 80 kg is standing in a trolley weighing 320 kg. The trolley is resting on frictionless horizontal rails. If the man starts walking on the trolley with a speed of 1 m/s (relative to the trolley), then after 4 sec his displacement relative to the ground will be
Answer: (C)
Solution
With and : m/s. Displacement m.