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A force of 10 N acts on a body towards theeast. The work done by the force while thebody moves through 1 m in the east-northdirection (midway between east and north) is-(a) 102(b) 51010 i(c) -10 5(d) - |
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Answer» Draw vector diagram of given situation you will see there is 45° between force and displacement .w=Fdscos(Ф)w= 10x1xcos(45°)w=10x1x1/√2=10/√2Joption 2 is correct option b iscorrect |
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