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Physics 14 Online
OpenStudy (anonymous):

A SPHERICAL MARBLE DROPPED FROM CERTAIN HEIGHT ON HORIZONTAL SURFACE REACHES IN TIME T SECOND TO BOUNCE UP AND DOWN. IF THE COEFFICIENT OF RESTITUTION IS e THEN TIME TAKEN BY MARBLE TO COME TO REST IS

OpenStudy (anonymous):

(1+e/1-e)*t

OpenStudy (anonymous):

but how????????? i know the ans is (1+e\1-e)*t

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