英语翻译Newton's second law of motion describes force.It says:force equals the mass of an object,multiplied by the change in speed it produces in an object.
问题描述：
英语翻译
Newton's second law of motion describes force.It says:force equals the mass of an object,multiplied by the change in speed it produces in an object.
答
牛顿第二运动定律描述了作用力：力等于是物体的质量乘以该物体速度的变化率.
（即F=ma,速度的变化率就是加速度）