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gracy
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if any object touches the ground i.e standing on the ground,will there be acceleration due to gravity?if yes,then how much more can object go downward due to this acceleration as it is already on the floor or ground?
Brul said:The 'acceleration due gravity' is simply the force between two masses; in this case the object and Earth. When standing on the floor, floor provides the force in opposite direction according to Newton's 3rd law. But this force works on contact, so when falling in the air you accelerate towards the Earth.
how can 'acceleration' be equal to force?Brul said:The 'acceleration due gravity' is simply the force between two masses; i
I don't quite understand your question. If you are standing on the ground at rest, then you are not accelerating. This is because the net force on you would be zero: Your weight would be balanced by the supporting force of the ground.gracy said:if any object touches the ground i.e standing on the ground,will there be acceleration due to gravity?
Careful here. The force provided by the floor is not a Newton's 3rd law pair with gravity. (It's Newton's 2nd law that is relevant here.)Brul said:When standing on the floor, floor provides the force in opposite direction according to Newton's 3rd law.
Taimoor Qamar said:If it is already on the floor or ground, it cannot go any further. That does not mean it isn't still "accelerating"
I would say that there is always a force of gravity, not necessarily an acceleration due to gravity.Taimoor Qamar said:"if any object touches the ground i.e standing on the ground,will there be acceleration due to gravity?"
yes, there is always an acceleration due to gravity; if there wasn't you would have no "weight"
If there was no acceleration due to gravity, when you go to stand on a scale, there would be no force pushing down on the scale, and thus, it would read "0"
Best written as ##\Sigma F = ma## to emphasize that it's the net force that determines the acceleration.Taimoor Qamar said:Newton's second law states Force=mass*acceleration; Your weight is a force;
Sure it does. The acceleration is zero.Taimoor Qamar said:If it is already on the floor or ground, it cannot go any further. That does not mean it isn't still "accelerating"
Good!Taimoor Qamar said:The force of your weight is canceled out by an opposite force from the floor; If you think about this logically, its obvious, as people don't just go falling through the ground; There is an equal and opposite force from the matter that the ground is made up of, pushing up against the force of your weight, and thus, balancing out all the forces to a net force of 0;
Acceleration due to gravity is the rate at which the velocity of an object changes as it falls towards the ground. It is caused by the gravitational pull of the Earth and has a constant value of 9.8 meters per second squared (m/s²).
Acceleration due to gravity causes objects to fall towards the ground at a faster and faster rate. This means that the velocity of the object increases as it falls, resulting in a greater impact when it reaches the ground.
The main factor that affects acceleration due to gravity is the mass of the object. The greater the mass, the greater the gravitational pull and the faster the object will accelerate towards the ground. Other factors such as the distance from the center of the Earth and air resistance can also affect acceleration due to gravity.
The formula for acceleration due to gravity is a = g = GM/r², where a is the acceleration, g is the gravitational constant (9.8 m/s²), M is the mass of the Earth, and r is the distance from the center of the Earth to the object.
When an object touches the ground, it is no longer accelerating due to gravity. Instead, it experiences a sudden change in velocity as it comes to a stop. This change in velocity is known as the impact velocity and is determined by the height from which the object was dropped and the acceleration due to gravity.