Newton's Laws Of Motion Essay

Newton’s Laws of Motion
Sir Isaac Newton was a revolutionary scientist of his time. His laws of motion, which now seems a simple concept to understand, was a dramatic new finding in science in his time. His laws of motion describe and explain the effects of forces acting on a body, and the body’s motion that results from the forces acting upon it. The three laws of motion are the following: 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/ an explanation on how the velocity of an object changes when it is subjected to an external force/ for every action (force) in nature there is an equal and opposite reaction.
The first law mentioned (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) is commonly taken as the definition of inertia. A main point this law focuses on is that if there is no net force acting on an object, then

In other words, if object A exerts a force on object B, then object B also exerts an equal force on object A. Consider this example: the propulsion of a fish through the water. A fish uses its fins to push water backwards. But a push on the water will only serve to accelerate the water. Since forces result from mutual interactions, the water must also be pushing the fish forwards, propelling the fish through the water. The size of the force on the water equals the size of the force on the fish; the direction of the force on the water (backwards) is opposite the direction of the force on the fish (forwards). For every action, there is an equal (in size) and opposite (in direction) reaction force. Action-reaction force pairs make it possible for fish to