Question

W=336 j t=? P = 14 W

Answer 1

$p = \frac{w}{t}$
$t = \frac{w}{p}$
putting values in formula

$t = \frac{336}{14} = 24$
therefore time is 24 sec

I hope you got your answer...

Answer 2

Power=work done÷ time taken

Power= 14W

Work done= 336J

14 = 336÷t

t= 336÷14

t=24seconds.

Hope it helps.