What is the centripetal acceleration of an automobile driving at 40 km/h on a circular track of radius 20m?

Help ASAP please!!!

1 answer

as u know........... centripetal acc=V2/r............... but we have to change the unit of velocity in order to get answer in S.I unit ok........................... so 40 x 1000/3600=11.11m/sec now ac=V2/r.... (11.11)2/20=6.172m/sec2