A light body and a heavy body have the same kinetic energy which one will have the greater momentum b) springs AandB that is force constant ka>Kb.in which spring is more work expended if they are streched by the same amount?
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the heavier body will have greater momentum bc by applyinh the formula p=(root of 2mk), M>m so kitetic energy of heavier body>kinetic energy of lighter body
Work done by the spring is given by (1/2)(K)(x^2). Talking about A it's spring constant is greater but expansion is less and in the expression, the term for expansion is squared. Hence we can say that it did less work.
Thus spring B did more work than A.
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