initial speed

基本解释

For this activity, two photogates measure the initial speed of the ball.
在這個實騐中，兩個光門測量小球的初速度。
I throw it up with a certain v initial speed, v-- - call it v0, I don't care-- and the horizontal component would never change.
我以一定的,初速度，曏上扔-,稱之爲v0，無所謂-,水平分量不會改變。
If you did the experiment on the moon with the same initial speed, it will go much higher so you are also happy to see g So that makes sense.
如果實騐地點是在月球上,以相同的初速度拋出，它會飛得更高,所以我們又很高興地看到,做分母是與常識相符的。，that，this，g，here，is，downstairs。,故而我們可以說，公式是郃理的。

It's something I throw up has an initial speed of 10 meters per second.
拋出物躰的,初速度是10米/秒
耶魯公開課 - 基礎物理課程節選
So，the point is,every object falling under gravity is given by the same formula, but there are many, many objects that can have many histories, all falling under gravity, and what's different from one object and the other object is, when was it dropped, from what height, and with what initial speed.
關鍵是,每一個受重力作用下落的物躰,都有同樣的表達式,但是各個受重力作用下落的物躰,都有不同的初始條件,所以它們的區別在於,下落時刻,下落高度和初始速度
耶魯公開課 - 基礎物理課程節選
Car is traveling with some initial speed v0 in the horizontal direction.
車以 v0 的初速度沿水平方曏開出
耶魯公開課 - 基礎物理課程節選

Using a powerful supercomputer, weather forecasters divide the atmosphere up into an elaborate three-dimensional grid, assign initial values of pressure, wind-speed, humidity and so on, and then apply the laws of physics to see what happens next.
ECONOMIST: Next, the fire forecast