YP Circular simulates an object in uniform circular
motion and/or an object in simple harmonic
motion. Both motions (circular and harmonic) may
be animated simultaneously to show that the
uniform circular motion is a combination of two
simple harmonic motions. Physics teachers use
YP Circular to show that the velocity is tangent to
the circle and that the centripetal acceleration is
directed toward the center of the circle, in a uniform
circular motion. Finally, physics students using YP
Circular should get a better understanding of the
meaning of the following concepts: "vector",
"component of a vector", "position", "velocity",
"acceleration". During the simulation, it is possible
to display the following vectors: acceleration,
velocity and position, and the following graphs:
acceleration, velocity and position versus time.

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