A mass m on a frictionless table is atta...

A mass `m` on a frictionless table is attached to a hanging mass M by a cord length `l` passing through a hole in the table. Find the speed with which `m` must spin for M to stay at the highest point. If this speedis doubled, what will be the force with which M will press the table ?

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The correct Answer is:

`v= sqrt(Mgl//m), 3 Mg`

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