# An electric vehicle starts from rest and accelerates 1

An electric vehicle starts from rest and accelerates at a rate of $2.0 m/s^2$ in a straight line until it reaches a speed of 20 m/s. The vehicle then slows at a constant rate of $1.0 m/s^{2}$ until it stops. (a) How much time elapses from start to stop? (b) How far does the vehicle travel from start to stop?