The "Screaming Swing" is a carnival ride that is - not surprisingly - a giant swing. It's actually two swings moving in opposite directions. At the bottom of its arc, a rider in one swing is moving at 33 m/s with respect to the ground in a 50- m -diameter circle. The rider in the other swing is moving in a similar circle at the same speed, but in the exact opposite direction.

Part A
What is the acceleration, in m/s2 , that riders experience?

R = 50/2 = 25 meters

v = 33 m/s
centripetal a = v^2/R = 33*33 / 25 = 43.56 m/s^2