Questions
A block of mass 'm' moving with a speed ' ' compresses a spring through a distance 'x' before its speed reduces by 25%. The spring constant of the spring is
detailed solution
Correct option is C
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Two similar springs P and Q have spring constants such that Kp > . They are stretched first by the same amount (case a), then by the same force (case b). The work done by the springs are related as, in case (a) and case (b), respectively.
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