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Physics - Force and Motion (Form I & II)
Muhtasari / Summary: Newton's three laws of motion, force, weight, and acceleration.
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A force is a push or pull acting on an object. Newton's Laws: 1st Law – an object remains at rest or uniform motion unless acted on by an external force (Inertia). 2nd Law – F = ma (force = mass × acceleration). 3rd Law – every action has an equal and opposite reaction. Weight W = mg. Friction opposes motion. Velocity = displacement ÷ time. Acceleration = change in velocity ÷ time.