calculate the effort applied in the upward direction in case of single movable Pulley which lifts a bucket of water of 30 kgf and is efficiency of given pulley system is 60%.
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Answer:
50kgf or 500N
Explanation:
η%= L/E x 100
60= 30/E x 100
E = L/η% x 100
E = 30/60 x 100
E = 1/2 x 100
E = 50kgf Or 500N
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