Add an instant force impulse to the rigidbody, using its mass.
添加一个瞬间冲击力到刚体，使用它的质量。
An impulse held me fast — a force turned me round.
但是一种冲动攫住了我——一种力量使我回过头来。
The product of a force and the time during which it acts is called impulse.
冲量就是力和它所作用的时间的乘积。
The product of a force and the time during which it acts is called impulse.
冲量就是力和它所作用的时间的乘积。
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