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The earth pulls every molecule of an object in a downwards direction, or in other words every molecule of an object has a weight. We can add all the millions of tiny molecule weights together and get a single resultant force for the weight of the whole object.
So an object behaves as if its whole weight was a single force which acts through a point G called its centre of gravity.
An object of uniform thickness and density has its mass evenly spread throughout and its centre of gravity is at its geometrical centre. Some examples of objects with regular shapes and uniform densities are shown in the figures below. It is interesting to note the centre of gravity of an object is not necessarily inside the object.
What else can I help you with?
Is the center of gravity is always in the body?
For a single body, the center of gravity (center of mass) must be within the object. It is the single point at which all of an object's mass can be considered to act. For multiple bodies in a system, the center of mass can fall within a body or anywhere between bodies. The joint center of mass is called the "barycenter."
Does the center of gravity always have to be located withing an object?
No. The center of gravity of a wedding ring is in the space at the center of the ring. The center of gravity of the letter ' V ' is somewhere along the vertical line between the two slanted lines.
Does the center of gravity always lie on the body?
The center of gravity always lies within an object, and is the location at which the entire mass can be considered acting at a single point.For a system of more than one object, the center of gravity can lie anywhere between the farthest points of the objects, depending on the distribution of mass. The center of mass is called the barycenter.
How can the center of gravity of an object be experimentally deternined?
-- Hang the object from at least two different points on it, in turn. -- During each hanging, draw a line on the object, directly downward, starting at the point from which it hangs. -- The object always hangs with its center of gravity directly below the point from which it hangs. So all such lines pass through the center of gravity, which is indicated by the point at which two or more such lines intersect.
Does the mass of an object change as the distance from the center of gravity change?
No, because mass is the amount of matter contained in a body. So whatever may be the distance from the center of gravity it always remains the same.
Where does an object center of gravity always lie?
It is always different depending on the object. For example a female humans' center of gravity is in the hip. as a male humans' center of gravity is in the chest. But once you have found the center of gravity in an object the center of gravity should be the same in every object like it.
Do the center of the gravity always coincide with the geometrical center of the object?
Only if the object is homogeneous, i.e. the mass is uniformly distributed. If the object is lumpy, or has thick spots and thin spots, then the center of gravity isn't related to the geometric shape. Consider a see-saw with a light kid on one end and a heavy kid on the other end. The geometric center is the mid-point of the board, but the center of gravity is closer to the heavy kid.
Is the center of gravity is always in the body?
For a single body, the center of gravity (center of mass) must be within the object. It is the single point at which all of an object's mass can be considered to act. For multiple bodies in a system, the center of mass can fall within a body or anywhere between bodies. The joint center of mass is called the "barycenter."
What is the direction of the force of gravity?
The force of gravity acts towards the center of mass of the object in question.
Can an object have more than one center of gravity?
No, objects cannot have more than one center of gravity. The center of gravity of an object can however change.
Does the center of gravity always have to be located withing an object?
No. The center of gravity of a wedding ring is in the space at the center of the ring. The center of gravity of the letter ' V ' is somewhere along the vertical line between the two slanted lines.
Does the center of gravity always lie on the body?
The center of gravity always lies within an object, and is the location at which the entire mass can be considered acting at a single point.For a system of more than one object, the center of gravity can lie anywhere between the farthest points of the objects, depending on the distribution of mass. The center of mass is called the barycenter.
Is it possible for an object not to have a center of gravity?
No, but the centre of gravity need not be inside the object. Not unless Gravity is not a variable. But it is not possible for an object to not have a center of mass.
How does weight affect center of gravity?
Weight directly impacts the position of an object's center of gravity. The center of gravity is the point where the weight of an object can be considered to act. As an object's weight increases, the center of gravity shifts towards the heavier end of the object.
Can an object have two center of gravity?
No. The center is the center.
The direction of a gravitational field?
Gravity always points to the mass it originates from. (it is an attractive force)
What are two forces that are always acting on an object?
Two forces that are always acting on an object are gravity, which pulls the object towards the center of the Earth, and normal force, which is the force exerted by a surface to support the weight of an object resting on it.
