Question

A racing car started from rest with acceleration 0.2m/s^2, one second later another car started from rest also with acceleration 0.25 in the same direction.

a) when will the second car pass the first
b) at what displacement

Answer 1

can some one explain the answer of this question for me please?

Answer 2

s=1/2at^2

Answer 3

take t=t-1 for second car

Answer 4

equate s... nd find t

Answer 5

after that put back t in eq1. to get ans for b part