define Newton first law and third law of motion
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Answer:
Newton's laws of motion relate an object's motion to the forces acting on it. In the first law, an object will not change its motion unless a force acts on it. ... In the third law, when two objects interact, they apply forces to each other of equal magnitude and opposite direction.
Explanation:
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Answer:
FIRST LAW:-
➡️NEWTON's first law states that every object will remain at rest or in uniform motion in a straight line unless compelled to change its state by the action of an external force.
➡️This is normally taken as the definition of inertia. The amount of the change in velocity is determined by Newton's second law of motion.
➡️Newton's first law examples:-
A stationary object with no outside force will not move.
With no outside forces, a moving object will not stop
THIRD LAW:-
➡️The third law of motion states that for every action, there is an equal and opposite reaction. This can be observed both in objects at rest and those that are accelerating.
➡️ For example, a resting box pushes down on the ground due to a gravitational force.
➡️If Newton's 3rd law did not exist, then we would have no way to predict what the reaction force would be or even if there was one.
➡️It asserts that "If body A exerts a force on body B, then B exerts a force of equal size and opposite direction on A." It can be written: FAB = – FBA.