Question

A car, starting from rest, accelerates at the rate f through a distance s, then continues at constant speed for time t and then decelerates at the rate f/2 to come to rest. If the total distance traversed is 15 s, then

(a) s = 1/2 f t²

(b) s = 1/4 f t²

(c) s = f t

(d) s = 1/6 f t²

Answer 1

For first part of journey, s = s ₁ ,

None of the given options provide this answer