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Newton's laws of motion are three physical laws that describe the relationship between the forces acting on a body and its motion due to those forces.
The velocity of a body remains constant unless the body is acted upon by an external force.
A body at rest will remain at rest and a body in motion will remain in motion unless acted upon by an outside force.
The acceleration (a) of a body is parallel and directly proportional to the net force (F) and inversely proportional to the mass (m), i.e., (F = ma).
A greater force will cause more acceleration. A smaller force will cause less acceleration. A smaller mass will accelerate with less force. A larger mass will accelerate with more force.
The mutual forces of action and reaction between two bodies are equal, opposite and collinear.
For every action there is an equal and opposite reaction.