A trolley is pushed along a road with a force of 400 N through a distance of 60 m in 1 minute. Calculate the power developed.
Force= 400N,
Distance travelled = 60m,
Time, t = 1 min = 60 s
Work done = Force x distance
Work done = 400 x 60
Work done = 24000 J
Power = Work done/Time
Power = 24000/60
= 400 W