A caterpillar uses a force of 34 N to crawl 30 cm across a branch. If the caterpillar's power is 1.02 W, how much time does the caterpillar's journey take?

A. 0.9 s

B. 10 s

C. 29 s

D. 33 s

B. 10 sec

Work done = force * distance moved

force = 34 N, distance = 30 cm or 0.3 m

work done = 34*0.3 = 10.2 J

Power = work done / time = 10.2/time

time = 10.2/1.02 = 10 s

Work = (force) x (distance) = (34 N) x (0.3 meter) = 10.2 joules

1.02 watts = 1.02 joules per second

(10.2 joules) / (1.02 joule/sec) = 10 seconds.

P. S.:

I would not want to run into that caterpillar at night in a dark alley.

That worm can push with 34 N of force = more than 7-1/2 pounds!