magnitude of velocity
网络释义
magnitude of angular velocity 角速度值
magnitude or direction of velocity 大小或方向的速度 ; 速度的大小或者方向
双语例句原声例句
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It's the magnitude squared of the velocity.
这是速度大小，的平方。
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It's always opposing the velocity, so this is the magnitude of the resistive force.
总是和速度相反，这是阻力的大小。
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Speed is the magnitude of the velocity vector and the speed, therefore, always has a positive value.
速率是速度矢量的大小,因此速率一般，都是正值。
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take the derivative of this, get the velocity vector and you notice his magnitude is a constant Whichever way you do it, you can then rewrite this as v square over r.
对这个式子求一次导,就能得到速度矢量,你会发现其模长是常数,不管用什么方法,加速度也可以写成 v^2 / r
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