1.  A child attaches a $15\mathrm{.}5$ cm string to a $25$ g ball and begins twirling it around his head. He twirl it faster and faster. If the string can withstand $95$ newtons of force before it breaks, how fast can he twirl the ball? Answer is m$/$s and use two sig figs.  $2$: A car is traveling down a wet, icy road. What is the maximum speed at which the car can take a curve whose radius of curvature is $33\mathrm{.}9$m if the kinetic coefficient of friction between the car and road is $0\mathrm{.}13?$