动量

guǎng yì dòng liàng

广义动量

generalized momentum

wù tǐ xià luò zēng jìn dòng liàng

物体下落增进动量。

A falling object gains momentum as it falls.

xuán zhuǎn de tuó luó zhèng zài shī qù dòng liàng

旋转的陀螺正在失去动量。

The spinning top was losing momentum.

qì chē chōng xià shān shí dòng liàng zhú jiàn zēng jiā

汽车冲下山时，动量逐渐增加。

The car gathered momentum as it rolled down the hill.

lì zǐ de dòng liàng

粒子的动量

the momentum of a particle

wù tǐ de dòng liàng dìng yì wéi qí zhì liàng chéng yǐ sù dù

物体的动量定义为其质量乘以速度。

The momentum of an object is defined as its mass multiplied by its velocity.