Understand and use position of vectors as a function of time.

u3-t4-s1-d1

Interactive

Position r(t) and velocity v(t) = dr/dt

demo

Scrub or play t along a circular or elliptical path to see the velocity vector stay tangent to the position vector's path.

Open fullscreen →

Want a different take?

Already have one and want another angle on this point? Describe what students should notice. Requests are read and acted on.