5ft/sec25 \mathrm{ft} / \mathrm{sec}^{2}5ft/sec2
52ft/sec2\frac{5}{2} \mathrm{ft} / \sec ^{2}25ft/sec2
3ft/sec23 \mathrm{ft} / \mathrm{sec}^{2}3ft/sec2
2ft/sec22 \mathrm{ft} / \mathrm{sec}^{2}2ft/sec2
None \text { None } None