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Q.2. A body of mass 'm' has a kinetic energy equal to one - fourth kinetic energy of another body of mass m/4. If the speed of the heavier body is increased by 4 m/s, its new kinetic energy equals the original kinetic energy of the lighter body. The original speed of the heavier body in m/s is: ?

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A body of mass m has
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A body of mass m has kinetic energy equal to
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a body of mass m has kinetic energy equal to one fourth kinetic of another body of mass m/4. if the speed of the heavier bodyis increased
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