Chemistry, 01.12.2020 01:00 normarjohnson
A lever was used to lift a heavy rock. The input force was 150 N and the
output force was 500 N. What was the mechanical advantage of the pulley?
O A. 3.3
O B. 0.3
O C. 650
O D. 350
Answers: 3
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A lever was used to lift a heavy rock. The input force was 150 N and the
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