公路上有冰,减缓了我们的速度。
下山时我们的速度加快了。
好,现在来看第3点,我们的速度是体现在这儿的。
That’s it now move on to point 3, we’re going for speed here.
For example, if we're talking about a pitcher, like Matsuzaka, we might want to know the speed of his average fastball.
举例来说,如果我们谈到一个投手,就像松阪,我们想知道他投出,快球的平均速度。
Let's plot droplet velocity as a function of looking at the number that have this velocity 0 with the zero being in the center here.
我们将液滴的速度设定为,观察那些数字作用,在中心的地方,速度为。
So, if we're trying to figure out the wavelength of a Matsuzaka fastball, we need to consider the velocity first, which is 42 miles per hour.
如果我们尝试计算一个,松阪发出快球的波长,我们首先需要考虑速度,每小时为42英里。
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