Halliday, Resnick & Walker — Center of Mass and Linear Momentum: Problem 32

32 A 2.5 kg toy car can move along an x axis; Fig. 9-42 gives \(F_x\) of the force acting on the car, which begins at rest at time \(t = 0\). The scale on the \(F_x\) axis is set by \(F_{xs} = 5.0\) N. In unit-vector notation, what is \(\vec{p}\) at (a) \(t = 4.0\) s and (b) \(t = 7.0\) s, and (c) what is \(\vec{v}\) at \(t = 9.0\) s?