a block of mass M moving at a speed V compresses is moving through a distance x before its speed is halved find the spring constant of the constant
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From conservation of energy principal
Change KE = PE store in spring
(1/2)×m×(v^2 -v^2/4) =(1/2)×k×x^2
k =(3m×v^2)/(4x^2)
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