In a car race, car A takes a time of t sec less than car B at the finish and passed the finishing point with a velocity v m/s more than the car B. Assuming that the cars start from rest and travel with constant acceleration a1 and a2 respectively which of the following is correct?

A) v = t√(a1/a2)

B) v = t√(a1.a2)

C) v = t /√(a1.a2)

D) v = t√(a2/a1)