2007-05-28 03:41:59 · 32 answers · asked by simar 1 in Science & Mathematics ➔ Physics
It is the gravitational force exerted by the earth onto the stone. If there was no gravity at all, then the stone will not fall; it will remain in the air. Everything has a gravitational force, even people. However, since the earth's gravitational force is greater, the force from other objects seems like nothing. This gravitational force is what gives every object its weight; no gravity means we are all weightless. If something with enough force is thrown up, it will overcome the force of gravity for a short time, then gravity dominates it later. Like when you throw the stone up in the air, your force is dominate at first, then gravity takes over, which make it fall to the ground.
2007-05-28 04:30:31 · answer #1 · answered by Danny 4 · 0⤊ 0⤋
The gravitational attraction of the earth. The stone reaches some height h depending on the kinetic energy with which it is thrown upwards (1/2 m.v^2 = m.g.h) and from that height it falls back to earth. It will escape earth's gravitational field and will go out into space only if the initial velocity of the stone is more than the escape velocity of the earth.
2007-05-28 03:54:49 · answer #2 · answered by Swamy 7 · 0⤊ 0⤋
You are transferring the muscular energy to the stone and it attains momentum and velocity and travels against the gravitational force. Slowly the velocity of the stone decreases due the action of gravitational force and it comes to zero at a certain height. Now there is no further force to move it upwards where as gravitational force pulls it down and the stone comes back to the ground with great velocity attained through gravitational effect.
2007-05-28 20:22:11 · answer #3 · answered by thannickan 3 · 0⤊ 0⤋
Gravitation" is the attractive influence responsible for the stone to fall, according to Newton's theory of Gravity.
2007-05-29 20:49:45 · answer #4 · answered by ♥ Rockerbaby♥ 2 · 0⤊ 0⤋
Gravity
2007-05-28 05:29:31 · answer #5 · answered by Anonymous · 0⤊ 0⤋
Stones have free will. They may choose to come down or to continue their journey in the air. But for some mysterious reason all of them decide to return to mother earth.
2007-05-28 03:49:24 · answer #6 · answered by ali j 2 · 0⤊ 0⤋
The equation for 2 bodies gravitationally attracted to one another is Gm1m2/r2. G= gravitational constant
m1= mass of 1st object (stone)
m2= mass of 2nd object (earth)
r2= radius or distance between the 2 objects
2007-05-28 04:04:31 · answer #7 · answered by Anonymous · 0⤊ 0⤋
If you are still having a lollipop in your mouth its a very nice observation and u r gonna be the future Sir Isaac Newton.
Again if you dont have one just get one from the grocery store and start sucking,but you would not end up to be the future scientist..
By the way why did you throw the stone up in the air.U wanted to hit someone?
And as soon u get to know please email me the answer to your observation.
2007-05-28 11:34:58 · answer #8 · answered by Nikhil007 2 · 0⤊ 0⤋
due to the force of gravity acting on the stone.
The force of gravity is due to the masses of stone and earth.
the eq. for the force acting on it can be given by,
F= GMm / r*r
where G= gravitational const.
M= mass of earth.
m= mass of the stone.
r = distance b/w stone and centre of earth.
2007-05-28 22:33:46 · answer #9 · answered by Indranil M 2 · 0⤊ 0⤋
Gravitationalpull
2007-05-31 23:54:43 · answer #10 · answered by CHANDU 1 · 0⤊ 0⤋