不要把沿圆周的切向加速度与向心加速度混淆。
Do not confuse ever the tangential acceleration, which is along the circumference, with centripetal acceleration.
先前在讲行星时,我们讨论过这个，我们讨论的是,匀速圆周运动，而且我们评估了,向心加速度。
We have discussed that earlier when we dealt with the planets, and we dealt with uniform circular motions, and we evaluated the centripetal acceleration.
但是别把这个切向加速度，它是沿着圆周的，和向心加速度混淆。
Do not confuse ever the tangential acceleration, which is along the circumference, with a centripetal acceleration.
爱因斯坦电梯；炮火射程；匀加速度和圆周运动的量纲分析。
Einstein's elevator; Artillery range; Uniform acceleration and circular motion using dimensional analysis.
看过一简单、快速的演示圆周运动中力和加速度的变化吗？
Looking for a simple, quick demonstration of forces and acceleration in circle motion?
看过一简单、快速的演示圆周运动中力和加速度的变化吗？
Looking for a simple, quick demonstration of forces and acceleration in circle motion?
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