Solve the all parts of following problem given below:
Problem: In short-track speed skating, the track has straight sections and semicircles 16 m in diameter. Assume that a 65kg skater goes around the turn at a constant 13m/s.
Part A: What is the horizontal force on the skater?
Part B: What is the ratio of this force to the skater's weight?
I need help to determine the horizontal force on the skater and express your answer to two significant figures and include the appropriate units.