Four movable pulleys are arranged as in the first system. If the weight of each pulley is 5 N, calculate the effort which can lift a load of 10 kN.

Four movable pulleys are arranged as in the first system. If the weigh

1.	Four movable pulleys are arranged as in the first system. If the weight of each pulley is 5 N, calculate the effort which can lift a load of 10 kN.
A.	629.7 N
B.	615 N
C.	625 N
D.	none of the mentioned
Answer» B. 615 N

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Four movable pulleys are arranged as in the first system. If the weight of each pulley is 5 N, calculate the effort which can lift a load of 10 kN.

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