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ÔȼõËÙÔ˶¯µÄÄ©ËÙ¶È$v=\frac{2{h}_{2}^{\;}}{{t}_{2}^{\;}}=\frac{2¡Á1m}{0.08s}=25m/s$
×ÔÓÉÂäÌåÔ˶¯µÄÄ©ËÙ¶È${h}_{1}^{\;}=\frac{{v}_{\;}^{2}}{2g}=\frac{2{5}_{\;}^{2}}{2¡Á10}=31.25m$
ŮͯÏÂÂäµÄ×ܸ߶È$h={h}_{1}^{\;}+{h}_{2}^{\;}=32.25m$
£¨2£©ÔȼõËÙϽµµÄ¼ÓËÙ¶È$a=\frac{v}{{t}_{2}^{\;}}=\frac{25}{0.08}=312.5m/{s}_{\;}^{2}$
ËùÒÔ$\frac{a}{g}=31.25$±¶
£¨3£©×ÔÓÉÏÂÂäµÄʱ¼ä${t}_{1}^{\;}=\frac{v}{g}=\frac{25}{10}=2.5s$
×Üʱ¼ä$t={t}_{1}^{\;}+{t}_{2}^{\;}=2.58s$
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