kinetic energy head

例句：

1. 1. The car's engine is producing a lot of kinetic energy.
   这辆车的引擎正在产生大量的动能。
2. 2. The kinetic energy of the projectile is equal to its mass times the acceleration.
   弹丸的动能等于其质量乘以加速度。
3. 3. The kinetic energy of the wind is responsible for the movement of clouds and precipitation.
   风的动能负责云和降水的运动。