Linear Collisions of Two Disks

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This Demonstration illustrates direct linear impact of two disks and the relationship between their masses, velocities, and the coefficient of elasticity. The velocity vectors of disks A and B are shown before and after impact by red and green vectors, respectively. Interesting variations to try are (1) A and B with the same mass and equal (but opposite) velocities, (2) disk B with zero initial velocity, and (3) coefficient of elasticity equal to 0.

Contributed by: Sara McCaslin and Fredericka Brown (March 2011)
Open content licensed under CC BY-NC-SA



W. F. Riley and L. D. Sturges, Engineering Mechanics: Dynamics, 2nd ed., New York: John Wiley and Sons, 1995.

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