Select which statement where work is done on an object.?
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A.)the perpendicular component of the force time the displacement of the object. B.)the parallel component of the force times the displacement of the object. C.)the perpendicular component of the force times the displacement of the object. D.)the parallel component of the force times the displacement of the object where the object moves along a path that returns the object to its starting position. ?
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Answer:
work done is the dot product of force times displacement. Hence if the displacement and force are perpendicular then value of work will be zero..similarly in your last option value of work is zero because displacement is zero in such a case..hence your option B will be correct
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Other answers
work done is the dot product of force times displacement. Hence if the displacement and force are perpendicular then value of work will be zero..similarly in your last option value of work is zero because displacement is zero in such a case..hence your option B will be correct
hamzapal...
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