Question

A new record for running the stairs of the Empire State Building was set on February 3, 2003. The 86 flights, with a total of 1576 steps, was run in 9 minutes and 33 seconds.

If the height gain of each step was 0.20 m, and the mass of the runner was 70 kg , what was his average power output during the climb? Give your answer in both watts and horsepower.
p=w
P=hp

Answer 1

Work done by runner
= F *d
= mg * d
= 70 kg * 9.8 m/s2 * (1576 steps * 0.2 m/step)

Divide your answer by time in seconds to get power output in Watts.
Look up conversion to horsepower.

Answer 2

i did divide the answer in sec but the answer still wrong can you pls do it maybe I'm doing something wrong

Answer 3

Answer to question #10

The Empire State Building would have been impressive if it were built at any time. What about the time period in which it was built made it even more impressive? Use information from the passage to support your answer.