A body of mass 5 kg is placed at the origin, and can move only on the x-axis. A force of 10 N is acting on it in a direction making an angle of 60o with the x-axis and displaces it along the x-axis by 4 metres. The work done (in J) by the force is

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answer is 20.

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Detailed Solution

W=FScosθ=10×4×cos60°=20 Joule

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