2 different questions with related concepts- trying to study and see how to solv

Question

2 different questions with related concepts- trying to study and see how to solve please help!

Question 9 10.5 pts A pulley system has a mechanical advantage of 22. If one is trying to raise a piano with a mass of 402 kg at a constant velocity, how much force is required to do this with the pulley system, in Newtons? Question 10 10.5 pts A pulley system has a mechanical advantage of 15. If one is trying to raise a piano with a mass of 427 kg at a constant velocity a distance of 2.2 meters, how many meters of the rope must be pulled?

Explanation / Answer

solution:

9).force required =mg/(M.A) 402*9.81 /22 =179.3 N ans

here M.A =mechanical advantage

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