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5CCG (5th MOB):
Hobby & Fun
Airplanes and Rockets:
Conservation of Momentum :
An object in motions tends to remain in motion. An object at rest tends to remain at rest. An external force is required to change the momentum.
Relationship of Force, Mass and Acceleration : F = ma. Acceleration and force are vectors, and the force vector operates in the same direction as the acceleration.
Action / Reaction : For every action there is an equal and opposite reaction.