Amusement park physics question

Question

 At an amusement park, a 100 kg man is on the “swing ride.” The swings provide the rider with a speed of 10 m/s and swings the man around in a circle with a radius of 5 m. What is the acceleration of the man on the swing?

Answer 1

You would use the following equation:

a = v²/R

where a is the acceleration, v is the speed, and R is the radius.

a = (10 m/s)²/ 5m = 20 m/s^2.