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Oliver weighs 600. N. He climbs a flight of stairs that is 3.0 meters tall in 4.0 seconds.
a. How much work did he do?
b. What was Oliver’s power in watts?

Sagot :

Wizard48
L=G·d
L=600N·3m=1800J
P=L/Δt=1800J/4s=450W
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