free fall law

例句：

1. 1. Thefree fall law states that the acceleration due to gravity is constant throughout the entire motion.
   自由落体定律指出，重力加速度在整个运动过程中是恒定的。
2. 2. In physics, the free fall law is used to describe the motion of an object falling freely under the influence of gravity.
   在物理学中，自由落体定律用于描述物体在重力作用下自由下落的运动。
3. 3.The free fall law has been confirmed by numerous experiments and observations in nature.
   自由落体定律已被大量的实验和自然观察所证实。