Question

Would someone explain how to get the answer? Thank you for any help! :)

Felipe weighs 50 pounds. He runs up a 4 foot flight of stairs in 10 seconds. What is Felipe's power output?

4 ft-lbs./sec
10 ft-lbs./sec
20 ft-lbs./sec
50 ft-lbs./sec

Answer 1

20 or C

Step-by-step explanation:

Answer 2

20 ft-lbs./sec is what i would say the answer would be I imagine to solve you would do the change in gravitational potential energy over change in time so you would have mass*gravity*change in height / change in time