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Question

It is easier to draw up wooden block along an inclined plane than hang it up vertically principally because

A
The friction is reduced
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B
Only a part of the weight has to be overcome
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C
The mass becomes smaller
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D
g becomes smaller
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Solution

The correct option is B Only a part of the weight has to be overcome
When we draw up wooden block along an inclined plane,we have to overcome only mgcosθ or mgsinθ,dependent on the angle taken vertically or horizontally i.e.,only a part of the weight,as cosθ<1 and sinθ<1.Also,when we hang it up vertically,we have to overcome whole weight of the body.
So,it is easier to draw it up the incline than to hang it up vertically.

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