What do you mean by work ? Give an example of negative work done? What is the to be done to increase the velocity from 18km/hr to 19km/hr if he mass of the care is 2000kg.
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The product of force and displacements are called work .
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work is the product of force and displacement.work is said to be done when a force applied on a body makes a body to move in its own direction . negative work is done when one tries to oppose a motion. work =1/2(mv-mu)2 use this surely answer will come .
ayushi104:
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