posted by john .
A 625-kg racing car completes one lap in 14.3 s around a circular track with a radius of 50.0 m. The car moves at constant speed.
(a) What is the acceleration of the car?
Your SUBJECT is not 11th grade.
yes it is
so acceleration= PI^2*4*r/14.3 put r in.
check my algebra.
Centripetal Acceleration = v^2/r
= 9.64 m/s^2
Thank you! you are correct @carey