Question

Johnny stacked 200 cans, each weighing 5 N, on shelves 1 meter high in only 100 seconds. How much power did he use for the task?

Answer 1

m g = 200 * 5 Newtons
work = PE = m g h = 200 * 5 * 1 Joules
work/time=power = 200 * 5 * 1 / 100
Joules/second or Watts

Answer 2

Oso