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A pulley system operates with 40% efficiency. if the work put in is 200 joules, how much useful work is produced?

A pulley system operates with 40% efficiency. if the work put in is 200 joules, how much useful work is produced?
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A pulley system operates with 40% efficiency. if the work put in is 200 joules, how much useful work is produced?

User Brian Ellis
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80 because 200 / 10 = 20, 20 x 40 is 80 out of 200
User Jamie Czuy
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User Towhid
asked Sep 1, 2018 171k views
A pulley system operates with 40% efficiency. if the work put in is 200 joules, how much useful work is produced?
Towhid asked Sep 1, 2018
by Towhid
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