Zweifach Rollbahn / Double Marble Track

Stations-ID: D086

Instructions:

Start and endpoint are the same for both spheres.

One of the spheres rolls along an inclined plane, the other takes a longer way.

• Which will reach its goal first?
• Which sphere arrives at its destination first, which arrives quicker?
• What would happen, if the spheres were of different sizes?

Playing with marble runs is not just a nice physics’ pastime. Designers of roller coasters or toboggan runs can not do without a solid knowledge of rolling curves and their mathematical description.

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