Figure (mathrm{P} 3. 28) shows motion diagrams for two cars, (mathrm{A}) and (mathrm{B}), beginning a race. The

Question:

Figure $\mathrm{P} 3. 28$ shows motion diagrams for two cars, $\mathrm{A}$ and $\mathrm{B}$, beginning a race. The diagrams show the position of each car at instants separated by equal time intervals. Both cars drive up to the starting line and then begin to accelerate.

(a) Which car has the greater velocity at instant 6? How can you tell? $(b)$ Which car has the greater velocity at instant 11 ? How can you tell?

(c) Which car has the greater acceleration after instant 6? How can you tell?

Data from Figure P3.28