So you have this counteracting normal force.

这个力，也就是平行於斜面的这个地心引力的分力。

There's no counteracting force to this 49 newtons.

这个力，也就是平行於斜面的这个地心引力的分力。

You have a counteracting force, the force of air resistance, I N upward.

现在考虑更多的例子。

We're sitting on the ground in the vertical direction, normal force counteracting the force of gravity.

现在考虑更多的例子。

So what is the counteracting force?

那么什么是反作用力呢？

Contrastingly, right turns required early pilots to counteract this force, demanding stronger control and rudder inputs.

相比之下， 右转需要早期飞行员抵消这种力量，需要更强的控制和方向舵输入。

All you need is a powerful enough upward force to counteract the downward force of gravity.

您所需要的只是一个足够强大的向上力来抵消向下的重力。

Underwater pees are also lengthier because the external water pressure counteracts the internal forces resulting from elevation difference.

水下小便也更长，因为外部水压抵消了海拔差异产生的内力。