名词
中文翻译：动力的
同义词：
['kinetic energy', 'kinetic force例句：1. The kinetic energy of the projectile is proportional to its mass and velocity.（投射物的动能与其质量和速度成正比。）']
例句：
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1. The kinetic energy of the projectile is proportional to its mass and velocity.
投射物的动能与其质量和速度成正比。
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2.The kinetic force between two objects is equal to their mass times the acceleration due to gravity.
两个物体之间的动量力等于它们的质量乘以由于重力引起的加速度。
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3.The kinetic energy of a ball thrown into the air can be calculated using the formula E = 1/2 m v^2, where E is the kinetic energy, m is the mass of the ball, and v is the velocityof the ball when it is thrown.
将球抛向空中时，可以使用公式E = 1/2 m v^2来计算其动能，其中E是动能，m是球的质量，v是球被抛出时的速度。