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A pulley system lifts a 500-N weight a distance of 1.5m. Marina pulls the rope A distance of 9.0m, exerting a Force of 100 N.
1) what is the mechanical advantage of this pulley system
2) What input did marina do on the road
3) what useful output did the rope do on the weight
4) what is the efficiency of the pulley system
THIS IS GRADE 8 PHYSICS PLEASE ANSWER
Answers: 2
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A pulley system lifts a 500-N weight a distance of 1.5m. Mar...
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