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An object m is tied to one end of a string, moves in a circle with a constant speed v on a horizontal frictionless table. The second end of the string is connected to a big mass M and goes through a small hole in the table. What is the value of M if it stays in equilibrium?(A) mv^2/rg (B) v^2 /rmg (C) rg/mv^2(D) mv^2 r/g
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