A 70.5 kg boy is going to run and walk up a flight of stairs. He counted that there were 15 steps and each step was 21 cm high. His walking time was 5.7 s, while his running time was 3.8 s.

Answer the following questions.

a. What was his work for walking the stairs?

b. What was his power for running the flight of stairs?

c. How does the work change between walking and running?

d. How does his power change between walking and running?

Answer rating: 100% (QA)

The detailed answer for the above question is provided below a Work done while walking The work done ... View the full answer