Asked by doc

a force of 10N acts on an object and raises its speed from 0 to 5 m/s in 10s.calcuate the average power.
Answered by Henry
a = (V-Vo)t = (5-0)/10 = 0.5 m/s^2

d = 0.5*a*t^2 = 0.5*0.5*10^2 = 25 m.

P = F*d/t = 10 * 25/10 = 25 J/s = 25 W.