Question

Find power delivered by F at t=10s. Body start from rest.

Answer 1

$\text{power delivered by F}$
$v_{10}=u+at$
$\Rightarrow v_{10}=0+1(10)$
$=10\;m/s$
$P_{10}=Fv=30\;w$

$\text{The correct answer is 30.}$