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  • An object of mass, m is moving with a constant velocity, v. How much work should be done on the object in order to bring the object to rest?

Q. 16.     An object of mass, m is moving with a constant velocity, v. How much work should be done on the object in order to bring the object to rest?

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At this moment the energy of the object is :

                                                  K.E.\ =\ \frac{1}{2}mv^2

Thus in bringing the object to rest the work needed is :  =\ K.E.

                                                       W\ =\ \frac{1}{2}mv^2\ J

Posted by

Sanket Gandhi

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