The answer is not 12 or 16.
The acceleration function (in m/s^2) and the initial velocity v(0) are given for a particle moving along a line. a(t) = 2t + 4, v(0) = 5, 0 < t < 3.
(a) Find the velocity at time t.
v(t) = 4t + 5 m/s.
(b) Find the distance traveled during the given time interval.
16 m.