centripetal force

基本解釋

So for the water to be ejected from the fur, the centripetal force has to exceed the surface tension.
所以，要讓水從皮毛彈出，向心力必須超過表面張力。
If the speed is doubled, keeping the radius constant, the centripetal force becomes four times as great.
如果半徑不變，速度增大1倍，則向心力增大為原來的4倍（增大了3倍）。
And there has to be here a force on the system, the gravitational force, which is the same as the centripetal force.
這個系統(tǒng)中,存在重力，和向心力相等。

Still, our gravest threat stems from the state replacing the family as the centripetal force around which American culture revolves.
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Yet falling transport costs have made this centripetal force less important over the past half-century, leaving many industrial cities, like Detroit, in deep trouble.
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To get finer shots from a swaying helicopter Segal modified his 360-degree panoramic cameras to spin two revolutions per second, creating a gyro effect whose centripetal force stabilizes the lens.
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a force that acts inwards on any body that rotates or moves along a curved path and is directed towards the centre of curvature of the path or the axis of rotation &rarrcompare centrifugal force