G P Thompson And it turns out that G.P. Thompson, and I'm sure this wasn't the case, but I like to think of it as a little bit of child rebelling against the father.
结果是他的儿子,我确定不是那种情况,但是我们认为他在小时候,对他的父亲可能有一点叛逆。
The force, as this weight drops is constant, mgh and so the work is just going to be m g h, h where this is h.
当重物掉落时候的力是恒定的,因此做功就是,这段长度是。
I'm the boss here," As Edward g. Robinson used to say.
我才是这里的老大",正如爱德华·罗宾逊所说
I'm going to start with a guess, I'm going to call it g. And then I'm going to say, if g squared is close to x, stop.
我会从一个猜想开始,把它叫做g,然后我会说,如果g的平方接近于X,打住。
I know this is the right answer, because if I now find the acceleration, I find it's mg divided by m and I get -g as the answer for all bodies.
我知道这个等式是正确的,因为现在如果我要求物体的加速度,用 mg 除以 m,我就得到 -g,这个结果对所有物体都成立
For example, we know that if a body is near the surface of the Earth, the force of gravity of that object seems to be m times g, where g is 9.8.
例如,我们知道,如果在地球表面有一个物体,该物体受到的重力大小为 m 与 g 的乘积,g 等于 9.8
Right. The most famous example is that when things fall near the surface of the Earth, they all have the same acceleration, and the acceleration that's common is called g, and that's 9.8 m/s^.
最有名的例子就是,当物体地球表面附近下落时,它们都拥有相同的加速度,这个普遍的加速度叫做g,大小为9.8m/s^
So, we know in this example the initial height should be 15 meters and the initial velocity should be 10, and for acceleration, I'm going to use -g and to keep life simple, I'm going to call it -10.
我们知道在这个例子中,初始高度为15米,初始速度为10,然后是加速度,我们用"-g"表示重力加速度,为了计算方便,加速度的值取为-10
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