Question

a person carrying 10 bricks of 2.5 kg eack moves to a distance of 20m. find work done

Answer 1

Answer:

Mass of the 1 brick = 2.5 kg

mass of 10 bricks= 2.5 × 10 = 25 kg

power = work done × displacement / time

          =  mgh/t

          = 25 × 10 × 20 / 50

           =  100

there the power is 100 W