Can someone help me on these problems? Centrip Force prob. A yoyo is whirled around in a circle over some yoyo’s head. The string will break if the force is greater than 10 N. If the mass of the yoyo is 200 g and the length of the string is 0.5 m, what is the maximum velocity of the yoyo? The Coeffient/Centrip Force prob. A car is going around a curve with a radius of 100 m. That is the maximum velocity of the car if the coefficient of friction is 0.5?