How long does it take for a 20 W motor to perform 800 J?

univerkov | November 27, 2020 | education

Decision:
P- (power) = 200W.
A- (work) = 800J.
Find: t- (time) = ?.
P = A / t; t = A / P.
t = 800J / 20W. = 40 h.
Answer: 40 hours.

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