Is it not Gravitation the cause of motion ?

Question

Otherwise what is the cause of motion?it could be force since force exist only at collision,so what it the cause?

Answer 1

force is the cause of motion, and gravity is a force, so gravity is sometimes the cause of motion. infact, it is almost always the cause of circular motion, or orbits

Answer 2

Gravity is no more the cause of motion than force is the cause of motion in F = ma...oh wait, force does cause motion. This equation, the famous Newton equation, says if we apply a force (F) to a mass (m), it will accelerate (a) (move ever faster) in the direction of the force.

Gravity is a force, one of the four fundamental forces in the universe according to string theory. Yep, I guess gravity does cause motion. Check this out.

F = mg...looks familiar. It is really F = ma, but with a twist, we put the acceleration under gravity (g) into the equation rather than just plain old every day vanilla acceleration (a). Now we need to be a bit more specific about the force as well. Let's call it weight (W); so the equation now becomes W = mg.

Your weight (a gravitational force...you'd be weightless without gravity) is causing your body mass (m) to accelerate at g feet per sec-sec towards the center of the Earth. The only thing keeping your body from sinking into the Earth is the electro-magnetic force of the atoms inside whatever you are standing on right now. EM is another of the four forces.

In grade school science class, we learn that g = 32 feet per sec-sec or thereabouts and that it is a constant. Well, like so many things adults tell us at that age that is not quite the whole story. g is constant all right, but only under specific conditions...like being on the surface of the Earth...for instance.

On other planets, g has other values; on the Moon, for example, g is about 5 ft per sec-sec. If you weighed 180 pounds (a measure of force) on Earth, you'd weigh about 30 pounds on the Moon. You could still be set into motion by gravity, but at a slower rate.

Please understand, gravity is just one force that can create a moving experience. There are other forces that can be derived from or expained using the four fundamental forces. Pressure acting on a volume of gas, for example, is a force that will move the gas. All forces can cause motion, but if and only if there are no opposing forces (like the EM keeping you from sinking into the Earth) to stop that motion.

Answer 3

no, but what causes motion, is the net force and etc. inertia strongly takes part of this, and as you all know, when something is in motion it stays in motion unless an external object acts upon it...so the net force is the forces that are applied to the thing and the effect would be the normal force/abnormal force. the normal force is like a girl sitting on a chair, and if the chair doesnt break its a normal force...and if its the abnormal force then the chair would break

though it also depends on your situation

if something is falling then yeah, gravity is the cause, and air resistance well opposing it

Answer 4

In Space its inertia. The initial push was power (the big ban?).

Aristotle said that rest is the natural state of the universe because most things we see are not moving. To get them to move we have to actively move them and when we stop moving them, they stop moving.

Our modern view incorporates the use of the Cartesian coordinates to show the relationship between time, distance velocity, and acceleration.

From these tools we can see that constant acceleration produces a straight line on a graph of velocity vs. time.

Furthermore we note that uniform (constant) acceleration produces a direct relationship between distance and the second power (square) of time. We can also show that the slope of this graph represents acceleration and the area of the graph represents distance.

Answer 5

NO.
take this example.. if u are in a very high gravity field u cannot move so there is no question of motion here.. actually gravity somewhat opposes motion

Answer 6

it is the cause of some motion but a Lot of motion has other causes.

Answer 7

yes . if u drop a object it falls down & itz due to gravity . but it also opeses the motion which is against it . any force can produce motion . ( e= mc2)

Answer 8

NO GRAVITY DOSENT SUPPORT MOTION SOMETIMES.
SUPPOSE BALL IS AT SOME HIGH GRAVITY FILED. IF ITS AT HIGH GRAVITY IT DOSENT MOVE. SO THERE IS NO CAUSE OF MOTION.
ANOTHER EXAMPLE WHEN IT MOVES. WHEN U TRHOW A BALL UP TO SOME HEIGHT, IT MOVES LITTLE BIT. BECAUSE BALL IS NOT HIS HIGH GRAVITY FIELD.

Answer 9

well, if the earth is moving outward in the universe, we are still moving when gravity is alive and well here on earth.....but is the entire universe pulled by gravity somehow??? Don't know......have to research that one. I guess gravity is what they theorize will pull the universe back into itself????? hmmmm?

Answer 10

motion of what