Question

a racing car completes 5 rounds of circular track in 2min find the radius of the track if the car has uniform centripetal acceleration of π^2 m/s^2

Answer 1

circumference=n×2πr=5×2πr

V=2πr×5/2×60=πr/12

a=v^2/r

π^2=π^2r^2/12^2×r

1=r/144

r=144m