we know that
Power = [work done]/[time taken]
work done=power*time taken
power---------- > 60 W
time taken------ > 3 sec
then
work done=60*3=180 J
and we know
work done=Force*distance
distance=[work done]/[force]
work done=180 J
force=10 N
distance=180/10=18 m
the answer is the option C.18m
