Question

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

Answer 1

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 !