Toy is attached to the end of a horizontal string and rotated in a circle?

A 0.30 kg toy is attached to the end of a horizontal string and rotated in a circle of radius 1.0 m on a frictionless horizontal surface. If the string will break when the tension in it exceeds 65 N, what is the maximum speed the toy can have?|||I calculate this to be a maximum speed of 14.72 m/s|||In the horizontal plane, the radial force is centripetal = Fc


Fc = mV虏/R {where m = 0.30, R = 1.0, Fc = 65}


65 = (0.30)V虏/1


V虏 = 65/0.30


can U solve for V? {speed at breakage point}|||the velocity of the toy will exactly match the velocity of yourself being expelled from your college physics class.