Answer:


Δd =

Step-by-step explanation:
As
, when the car is making full stop,
.
. Therefore,

Apply the same formula above, with
and
, and the car is starting from 0 speed, we have

As
. After
, the car would have traveled a distance of

Hence

As
we can simplify

After t time, the train would have traveled a distance of

Therefore, Δd would be
