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MCQ
A force of 20 N is applied at 60 degrees to the direction of a 5 m displacement. The work done is:
Unit-6 Work and Energy
A 100 J
B 86.6 J
C 25 J
D 50 J
Explanation

W = F d cos60 = 20 x 5 x 0.5 = 50 J.

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