1. The problem statement, all variables and given/known data A vehicle Accelerates from rest (a) and travels a certain distance s1 It then deccelerates (a) at a constant rate and travels a second distance s2 until it stops. If s2/s1 = K then what is the accleration (a) of the vehicle. 2. Relevant equations v=u+at s=ut+1/2at^2 s=vt-1/2at^2 v^2=u^2 + 2as s=(u+v)t/2 3. The attempt at a solution I used v^2=u^2 + 2as to describe the two parts of the journey but I ended up at a completely incorrect answer.