Radius of Curvature

Question

A bicyclist traveling at 8 m/s rides around an unbanked curve. The coefficient of friction (is this static or kinetic friction?) between the tires and the road is 0.36. What is the radius of the shortest turn that the bicyclist can safely make?

Please, answer
Thank you

Answer 1

force centripetal=force friction
mv^2/r=mg*mu
solve for r