I need help on this use grade 12 formula's

Circular Motion Questions QI) 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 075 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 wthout slipping? (3 marks)