Centripetal Force Requirement Video Tutorial

The Centripetal Force Requirement Video Tutorial explains what is meant by a centripetal force and why a centripetal force is required to sustain a circular motion. Numerous examples, illustrations, demonstrations, and animations assist in the explanations. The video lesson answers the following questions:

  1. What is meant by “centripetal” force?
  2. Why does the net force on an object moving in a circle have an inward direction?

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