contestada

50 J of work was performed in 20 seconds. How much power was used to do this task? A. 0.4 W B. 2.5 W C. 4 W D. 24.5 W

Respuesta :

Power = W/t
Therefore 50/20 = Power
So... Power is 2.5W
Power = work/time

P = 50/20

P = 2.5 watts

hope this helps :)