It might seem surprising that a particle moving

Conservation of angular momentum L = r X m v Kepler's second law states: Does a free particle moving in a straight lines Press start to start the animation, and let the show begin

A black dot will move freely from left to right.

Do all the areas have the same size?

Click within each area and see what will happen.

Certainly, from mathematics equation, we know

Another angular montum conserved simulation

The following is another applets show two mass object attracted to each other by gravitation force.
The gravitation force does not change angular momentum.

/htdocs/ntnujava/ejsuser/2/users/ntnu/fkh/twostarsequalarea_pkg/twostarsequalarea.propertiesFull screen applet or Problem viewing java?Add to exception site list
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