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Newton First Law of motion states that "A body continues in its state of rest or of uniform motion in a straight line until/unless an external force is applied upon it" Why is it so? "Inertia is the property of a body to resist any change in its state of rest or of uniform motion in a straight line" Newton's first law of motion is also therefore known as law of inertia because of the inertia the body will remain in its initial state forever. And mass is the measure of the inertia of a body.
Earth in its orbit.
interia cant hold planets together. here is the definition for INERTIA: Inertia is the resistance of any physical object to a change in its state of motion or rest. It is represented numerically by an object's mass.Inertia is the resistance of any physical object to a change in its state of motion or rest. It is represented numerically by an object's mass.
Newton had accomplished a lot in his life, He had devoted much of his work towards alchemy, theology and history, In 1669, Sir Isaac newton built the first reflecting telescope, During his life he was involved in the development of the calculus, It was then newton had struck the Laws of Motion and the Law of Gravitation. 1. Every object in a state of uniform motion tends to remain in that state of motion unless an external force is applied to it. 2. The net force on a body is equal to its mass multiplied by its acceleration. 3. For every action there is an equal and opposite reaction.
An object that is IN motion tends to remain that way. Check out Newton's laws of thermodynamics. Basically, he postulated that things moving tend to keep moving, things stationary tend to stay stationary, and left to themselves, most thing degrade into chaos. This might sound silly, but you have to examine the statement a bit more. It's 'outside' forces, like gravity, friction, etc that act on objects to alter their movement or lack thereof. If you can imagine, for example a large glass bowl that has a vacuum inside it, and somehow, you could negate the force of gravity and friction as well. If you set a top spinning in the bowl, it would continue to spin forever - no friction to slow it down, no gravity to cause it to tip over, no air to cause drag, etc etc.
Johannes Kepler (1571-1630), a German who travelled to Prague to become the assistant of Brahe, was studying the orbit of Mars and while examining that data discovered the Laws of Planetary Motion which state an elliptical orbit rather than a circular one.
Laws of planetary motion.
The cubes of the average distances of the planets from the sun is proportional to the squares of their periods.
Kepler's 1st law of planetary motion state that Each planet moves in an elliptical orbit with the sun at one focus.
All of them
All of them
Force equals mass times acceleration, F= ma.
With changing the "state of motion", I assume you want to change the velocity. What you need here is a force, applied on the object. The amount of acceleration is given by Newton's Second Law.
the state of rest is also called the state of motion in which the speed is zero.
The second law of motion states that acceleration is directly proportional to the force, and inversely proportional to the mass. a = F/m.
Motion just stop at absolute zero.
The solid state has the least molecular motion.