physics
posted by Jennifer h. .
a stone with a mass of .700kg is attached to the end of a rting 0.900m long. the string will break if its tension exceed 60.0 N. the stone is whirled in a horizontal circle on a frictionless tabletop; the other of the string remain fixed. Find the maximum speed the stone can attain without breaking the string?

60N=.7*V^2/.9
solve for V
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