Definition 1: Newton’s first law of motion

An object continues in a state of rest or uniform motion (motion with a constant velocity) unless it is acted on by an unbalanced (net or resultant) force.

Definition 2: Newton’s second law of motion

If a resultant force acts on a body, it will cause the body to accelerate in the direction of the resultant force. The acceleration of the body will be directly proportional to the resultant force and inversely proportional to the mass of the body. The mathematical representation is:

F⃗ net=ma⃗ 

Chipa Thomas Maimela‘s insight:

Definition 3: Newton’s third law of motion

If body A exerts a force on body B, then body B exerts a force of equal magnitude on body A, but in the opposite direction.

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