The centripetal acceleration of an object moving along a circular path can be described by the following formula, where ac = centripetal acceleration, r = radius of the circular path, and t = time.

Question

What is the equivalent equation solved for r?
a_c = 4(pi^2)r/t^2

Answer 1

ac = 4(pi^2)r/t^2
(ac)(t^2) = 4π^2 r
r = (ac)(t^2)/(4π^2)

Answer 2

r=ac t^2/4π^2