'Ve derived kepler' presentation slideshows

For a central force the position and the force are anti-parallel, so r ?F = 0.

For a central force the position and the force are anti-parallel, so r ?F = 0. r. F. N is torque. Newton II, angular. So, angular momentum, L, is constant. Since the Angular Momentum, L , is constant:. Its magnitude is fixed Its direction is fixed. L. r. p.

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