Centripetal force
01
向心力, 指向圆心的力
the force that acts on an object moving in a circular path, directed toward the center of the circle or the axis of rotation, preventing the object from moving in a straight line
例子
When you swing a ball attached to a string in a circular motion, the tension in the string acts as the centripetal force.
当你以圆周运动摆动附着在绳子上的球时，绳子中的张力充当向心力。
In planetary motion, the gravitational pull exerted by the sun on a planet acts as a centripetal force keeping the planet in orbit.
在行星运动中，太阳对行星施加的引力作为向心力使行星保持在轨道上。
