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A block of mass 12 kg is pushed along a smooth frictionless surface with a two...

A block of mass 12 kg is pushed along a smooth frictionless surface with a two constant forces, F1 = 100 N at the angle of 100 above the horizontal, and the F2 = 50 N at the angle of 200 above the horizontal. The block is displaced 2.6 m. Calculate the total work done by block.

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Answer #1

F W= F,S Cos 80° + FS cas 20° = 100(2.6)(0.17365) + 200 (2.6) (0.9397) 45.15 + 488.64 -533.79 J sro 28

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