Question

a man of mass 50 kg is standing upon a plank of mass 100 kg kept on a frictionless horizontal floor. initially both are at rest . if the man starts walking on the plank with the speed 6m/s towards right relative to the plank then amount of muscle energy spent by the man is​

Answer 1

Answer:

23 kacnal

Explanation:

is the write Ans

Answer 2

d=DX/dt

Explanation:

150*60=900

900/60=30