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Question

In Figure drawn, a tackle is used to lift the load by applying the force in the downward direction. What is the mechanical advantage of the system?

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A
6
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B
8
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C
4
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D
5
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Solution

The correct option is C 5
Here it is 5 pulley system hence total load on tackle(movable part) will be equals to "5T"
and on block(fixed part) total effort will be "T"
hence mechanical advantage(M.E)=loadeffort=5TT =5

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