A body is moved through a distance of 500m by a force of 20N. If the power developed is 0.40Kw. Calculate the time for which the force acts?

1 Answer
Aug 5, 2018

t=25s

Explanation:

First solve for work done with the formula W=Fd

W=20N*500m=10000J

Use power formula to solve for time, using P=W/t

400W=10000J/t

converted to watts instead of Kw since Joules per second is equal to watts

t=25s