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sindhuja P Grade: 11
        

Two blocks each of mass 'm' are attached to the ends of a spring of force constant k. The system is placed on a rough surface having coefficient of friction Y. The maximum initial compression that can be given to the spring so that when released the blocks do not move is ___________ 

7 years ago

Answers : (1)

Badiuddin askIITians.ismu Expert
147 Points
										

Dear paidepelly




Let the maximum compression given to spring is x




Force acting on a block is


Normal reaction (N) in the verticle direction from the surface


mg force in the downward direction.


spring force =kx


frictional force =YN in the apposite direction of spring force




now block will not move if YN≥kx


or x ≤YN/k


    x≤Ymg/k





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Badiuddin

7 years ago
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