(a)[1]
On Fig. 1.1, plot and label a point where the car undergoes non-uniform deceleration.
(b)[2]
Calculate the car's deceleration at $t = 3.0\,\text{s}$.
(c)[2]
Explain, in terms of the horizontal forces acting on the car, why its speed stays constant at $t = 1.0\,\text{s}$.