# physics in the xgames

There is a lot of physics in the xgames. In my favorite event, the freestyle snowmobiling has a lot of physics involved. When a snowmobiler is doing a flip in the air, have you ever wondered how fast they're going? Well, you can calculate their centripetal acceleration. Using the equation Ac= v^2/r. First you need to find out the radius of the spin. That would be hard to calculate an exact radius, but you can find an approximate radius probably using the a meter stick. Then to find a velocity it's distance over time. So calculate how far the mobiler is going from start to end, and how long it takes him. From there you can plug into the whole equation, and find out the centripetal acceleration of a snowmobiler in the xgames.

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