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Newton's laws of motion

Newton's laws of motion consist of three physical law s that form the basis for classical mechanics. They describe the relationship between the forces acting on a body and its motion due to those forces. They have been expressed in several different ways over nearly three centuries, and can


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Question:I am doing a science project . Is a girl riding a surf board considered to be Newtons first law of motion ? I have a science Project and isnt a girl riding a surfboard considered to be Newtons first law? & Newtons First law, isnt it An object will stay at rest unless another object will act upon it???

Answers:Theoretically, this is a scenario where the three Laws Of Newton can be applicable. Anyway, Newton's 1st Law is also known as the Law of Inertia and fora science project, I would suggest a very simple demonstration like so. Place a block (or any object) on a smooth table. Note that this block is not moving initially. If you apply an external force on it (in other words, push or pull it), the block will obviously move consistent with the direction of the applied force. If the external force is taken off (i.e., you stop pushing or pulling), the block will simply stop. Another way the block will stop is when something stops it from moving. It could be an impediment or simply anything that will prevent the block from moving. Hope this helps.

Question:

Answers:First off, every action has an equal and opposite reaction. If you look at a helicopter, the blade on top spins, and it needs the blade rotating in the back to keep the cabin from spinning like crazy. Then second, inertia, a plane takes off to a high altitude, then it only needs to produce enough thrust to overcome air resistance to maintain speed, inertia does the rest.

Question:

Answers:inertia, force, reaction?

Question:How do you apply Newton's 3 Laws of Motion to the medical field?

Answers:First law - An object at rest will remain at rest unless acted on by an unbalanced force. An object in motion continues in motion with the same speed and in the same direction unless acted upon by an unbalanced force. This law is often called "the law of inertia". Blood flow around the body will continue until a force stops it (eg tourniquet) Second law - Acceleration is produced when a force acts on a mass. The greater the mass (of the object being accelerated) the greater the amount of force needed (to accelerate the object). Ask the trolley pushers - the heavier the patient, the more force needed to push them along on the trolley. Third law - For every action there is an equal and opposite re-action. The higher the medical bill - the closer the patient's jaw is to the ground. No - update - wouldn't blood pressure cuff show that when an object pushes it gets pushed back in the opposite direction with equal force ??? (yeah - i'm starting to struggle)

From Youtube

Inertia :Check us out at www.tutorvista.com Inertia is the resistance of any physical object to a change in its state of motion. It is represented numerically by an object's mass. The principle of inertia is one of the fundamental principles of classical physics which are used to describe the motion of matter and how it is affected by applied forces. Inertia comes from the Latin word, "iners", meaning idle, or lazy. In common usage, however, people may also use the term "inertia" to refer to an object's "amount of resistance to change in velocity" (which is quantified by its mass), or sometimes to its momentum, depending on the context (eg "this object has a lot of inertia"). The term "inertia" is more properly understood as shorthand for "the principle of inertia" as described by Newton in his First Law of Motion. This law, expressed simply, says that an object that is not subject to any net external force moves at a constant velocity. In even simpler terms, inertia means that an object will always continue moving at its current speed and in its current direction until some force causes its speed or direction to change. This would include an object that is not in motion (velocity = zero), which will remain at rest until some force causes it to move. On the surface of the Earth the nature of inertia is often masked by the effects of friction, which generally tends to decrease the speed of moving objects (often even to the point of rest), and by the acceleration due to gravity. The ...

Newton's Laws Of Motion (1) : The Law Of Inertia :ESA Science - Newton In Space (Part 1): Newton's First Law of Motion - The Law of Inertia Newton's laws of motion are three physical laws that form the basis for classical mechanics. They have been expressed in several different ways over nearly three centuries. --- Please subscribe to Science & Reason: www.youtube.com www.youtube.com www.youtube.com --- The laws describe the relationship between the forces acting on a body and the motion of that body. They were first compiled by Sir Isaac Newton in his work "Philosophi Naturalis Principia Mathematica", first published on July 5, 1687. Newton used them to explain and investigate the motion of many physical objects and systems. For example, in the third volume of the text, Newton showed that these laws of motion, combined with his law of universal gravitation, explained Kepler's laws of planetary motion. --- Newton's First Law of Motion An object in motion will stay in motion, unless an outside force acts upon it. There exists a set of inertial reference frames relative to which all particles with no net force acting on them will move without change in their velocity. Newton's first law is often referred to as the law of inertia. en.wikipedia.org .