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Question

The work done in slowly pulling up a block of wood weighing 2 kN for a length of 10m on a smooth plane inclined at an angle of with the horizontal by a force parallel to the incline is :

A

4.36 kJ

B

5.17 kJ

C

8.91 kJ

D

9.82 kJ

Medium

Solution

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Correct option is
B

5.17 kJ

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