Question

21. A power mower does 9.00 x 105J of work in 0.500 h. What power does it develop?

Answer 1

500W

Step-by-step explanation:

power (P) is defined as the rate at which work is done.

power is measured in Watts (W)

`Power=(work.done)/(time.taken) \\ \\ =(9*10^(5)J )/(0.5*60*60s) \\ \\ =500 Js^(-1)=500W`