1.4 m/s21.4 \mathrm{~m} / \mathrm{s}^{2}1.4 m/s2
1.57 m/s21.57 \mathrm{~m} / \mathrm{s}^{2}1.57 m/s2
1.0 m/s21.0 \mathrm{~m} / \mathrm{s}^{2}1.0 m/s2
7.0 m/s27.0 \mathrm{~m} / \mathrm{s}^{2}7.0 m/s2