Gravity is one of the four fundamental 'fields of force' that exist in the universe.
It is universally attractive and is proportional to the mass of the objects and inversely proportional to the square of the distance apart.
The gravitational force exerted on an object, according to classical mechanics, is the product of the gravitational constant, the object's mass, and the mass of the object exerting the gravitational force divided by the square of the magnitude of the position vector starting from the object exerting the gravitational force and pointing to the object which we are measuring the force exerted onto. And all of this is times the negative of that same position vector.
Fg = G (m1*m2)/(d^2)
where G= gravitational constant (6.67*10^-11 Nm^2/kg^2)
m1 and m2 = the masses object 1 and object 2 respectively
d=the distance (in meters) between the two objects (note: it is sometimes referred to as r, as the equation is mainly used when dealing with stars, which have circular orbits, meaning we use radii for distance)
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On Earth, it's 9.8 Newtons (2.205 pounds) for each kilogram of mass.
It's different in other places, and with different masses. But whatever the
force turns out to be, most people call it the object's "weight".
If your question is referring to an object on Earth, simply use Newtons force equation and the acceleration due to gravity here on Earth.
Force = Mass*Acceleration
Acceleration =: Gravitational acceleration on Earth is 9.81m/s2 or 32.2 ft/s2
Mass =: You will need to know the mass or the object in kilograms or pounds
Force =: Multiply the above to parameters together and you have your force due to gravity with units of Newtons (kg*m/s^2) or Pounds Force (lb*ft/s^2)
NOTE: This is all assuming that your object is on a flat surface. While the force will be the same, if it is on an incline or something like that, the force of your object on the surface it sits will be the cosine of some angle.
-So for the case where your object is on an incline plane, at angle theta, you have a normal force acting perpendicular to the incline plane, and the gravitational force acting in the x direction (straight down). The normal force is given by the following:
FN = FG*cos(theta)
where FG is the gravitational force
Gravity is responsible for the pair of forces that attract two objects toward each
other. When one of the objects is the Earth and the other one is you, you call one
of the forces your "weight", and you totally ignore the other one ... the one that
attracts the Earth toward you. But that's OK, because the two forces are always
equal. You attract the Earth with the same amount of force as the Earth attracts
you, and your weight on the Earth is the same as the Earth's weight on you.
Source - Physics (company- Holt)
Weight
dust
Gravity, its weight.
The mass of an object doesn't depend on the gravitational force on the object.
The FORCE, or Gravitational Pull of the Earth on an Object is DIRECTLY PROPORTIONAL to the Object's Mass. Force = Mass x Acceleration of Gravity So, if Mass goes up, Pull goes up, If the Mass goes down, the Pull goes down.
yes gravity pulls object toward the earth Here on Earth, the force of gravity does indeed pull objects down toward the Earth. But bear in mind that gravity is a universal force. On the planet Mars, for example, gravity pulls objects toward Mars. All objects in the universe have their own gravitational force, the strength of which depends upon how massive the object is. The sun is much heavier than the Earth, and the gravitational attraction of the sun is enormously greater than that of the Earth.
The force of gravity acts on an object if it's on a hill. if it is not then it takes another force, such as a push or pull, to move the object.
A push or pull that acts on an object is a force.
No. Gravity is an attractive force, meaning it acts to pull things together.
A push or pull that acts on an object is a force.
A push or a pull on an object is a force on that object.
force
Gravity acts to pull objects together. That's called an "attractive" force, not a 'repulsive' one.
force
dust
gravity
Gravitational Pull, push, or force.
Yes, it is possible.Think back. Did you ever hold a book in your hand ?The force of gravity acts downward on the book, while the force of your hand acts upward on it.That's why the force of gravity doesn't pull the book to the floor.