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Newton's Laws of Motion...

Newton's Laws of Motion

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(1) Newton's first law of motion : An object continues to remain at rest or in a state of uniform motion along a straight line unless an external unbalanced force acts on on it.
(2) Newton's second law of motion : The rate of change of momentum is proportional to the applied force and the change of momentum occurs in the direction of the force.
(3) Newton's third law of motion : Every action force has an equal and opposite reaction force which acts simultaneously.
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