## Physics (10th Edition)

0.75 $m^{2}/s$
d = $\frac{a^{3}}{cb^{2}}$ = $\frac{a^{3}}{c} \times \frac{1}{b^{2}}$ = $\frac{(9.7m)^{3}}{69\; m/s} \times \frac{1}{(4.2s)^{2}}$ = $912.673 m^{3} \times \frac{1\; s}{69\; m} \times \frac{1}{17.64\; s^{2}}$ $\approx$ 0.75 $m^{2}/s$