leavieli000 leavieli000

15-11-2020
Physics

contestada

1. Mike wears an 8.50 kg backpack while scaling a cliff. After 90 minutes, Mike is 11.2 m above the starting point.
a. How much work does Mike do on the backpack?
b. If Mike weighs 630 N, how much work does he do lifting himself and the backpack?
c. What is the average power developed by Mike?

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