How far can you fly out of the front windshield of your car?
有多远你能飞出的前挡风玻璃的你的车?
If you know the precise direction and velocity at which a shot put leaves an Olympic athlete's hand, you can use a linear equation to accurately forecast how far it will fly.
如果你知道了铅球的精确方向以及它在离开奥运会运动员的手时速度的大小,那么你就可以用一个线性方程去精确地预测它能飞多远。
If you know the precise direction and velocity at which a shot put leaves an Olympic athlete 's hand, you can use a linear equation to accurately forecast how far it will fly.
如果你知道了铅球的精确方向以及它在离开奥运会运动员的手时速度的大小,那么你就可以用一个线性方程去精确地预测它能飞多远。
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