Please solve this physics question........motion in one dimension?

Question

Kathy K buys a sport car that can accelerate at the rate of 4.9m/s^2,she decides to test the car by racing with another speedster,Stan,both start from rest but experience stan leaves the starting line 1 s before kathy,if stan moves with a constant acceeration of 4.9m/s^2

a)find the time at which kathy overtakes stan

b)the distance she travel before she catches him

c)the speed of the both car at the instant she overtakes him..

pleaseee.....:)

Answer 1

You must have a typo.  If both of them are accelerating at 4.9 m/s^2 then stan will always be moving away from Kathy if she is accelerating at the same rate since he left first.