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Question
A force of 20 N displaces a body through a distance of 1 m at an angle of 60° from its own direction. Calculate the amount of work done.
A force of 20 N displaces a body through a distance of 1 m at an angle of 60° from its own direction. Calculate the amount of work done.
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Solution
The correct option is B 10 J
Here, force F = 20 N, displacement(S) = 1 m. Angle = 60°.
Work done, W =FScos60° =20 X 1 X cos60°=20X 1 X 1/2 = 10J.
10 J
Here, force F = 20 N, displacement(S) = 1 m. Angle = 60°.
Work done, W =FScos60° =20 X 1 X cos60°=20X 1 X 1/2 = 10J.
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