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Elastic Movement

You can create an object that will have a “gravitational pull” toward a fixed point when moved away from its point of origin. You’ll be able to drag the object to any position and let it go, and then observe the object return to its origin in an elastic fashion. It will bounce back to the fixed point as if there were a rubber band attached between the ball and the fixed point.

In the next exercise, the variable list that you’ll be tracking to do this is very similar to the list of variables you tracked in the throwing example, with a couple exceptions. Instead of tracking the new and old positions of X and Y, you’ll track the following:


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