I need help on this

Circular Motion Questions Q1) Draw free-body diagrams for each of the following objects in uniform circular motion. State the force(s) providing the centripetal force: (2 marks each) 1. A ball on a string swinging in circles on a horizontal surface 2. A pilot in a plane making a vertical circle in mid-air . at the top of the loop (she is upside down at this position, as is the plane) . at the bottom of the loop Q2) A rock of mass 200.0 g is attached to a 0.75 m long string and swung in a vertical plane. (3 marks, 2 marks) a) What is the slowest speed that the rock can travel and still maintain a circular path? b) What is the tension in the string at the bottom of the swing? Q3) Kim has her coffee cup on her car's dash when she takes a corner with radius 4.00 m and 20.0 km/h. What is the minimum coefficient of static friction which would allow the coffee cup to stay there without slipping