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According to Newton's law of universal gravitation, every point mass in the universe attracts every other point mass with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers. The formula for this gravitational force (F) is given by:
�
=
�
⋅
�
1
⋅
�
2
�
2
F=
r
2
G⋅m
1
⋅m
2
where:
�
F is the gravitational force,
�
G is the gravitational constant,
�
1
m
1
and
�
2
m
2
are the masses of the two objects,
�
r is the distance between the centers of the masses.
In this formula, if the masses (
�
1
m
1
and
�
2
m
2
) are zero, the gravitational force would be zero. However, this is a theoretical scenario as masses are fundamental to the concept of gravity.
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A rock is thrown vertically into the air At the very top of its trajectory the net force on it is?
At the very top of its trajectory, the net force on the rock would be equal to zero, since the velocity at that point is momentarily zero. This means that the gravitational force pulling it down is exactly balanced by the force of the throw pushing it up.
Gravitation Force inside a sphere?
The gravitational force inside a solid sphere is zero because the gravitational forces from the parts of the sphere above cancel out the forces from the parts below, resulting in a net force of zero at any point inside the sphere. This is known as the shell theorem.
What would be the magnitude and direction of acceleration which would make the balance reading zero?
The magnitude of the acceleration required to make the balance reading zero would equal the gravitational acceleration acting downwards on the balance. The direction of this acceleration would be upward to counteract the gravitational force acting downward, resulting in a net force of zero on the balance.
What range of force is the gravitational force?
-- The size (strength, magnitude) of gravitational force can be anything more than zero. -- The direction of gravitational force is always in both directions between the centers of two masses, attracting them toward each other. -- The distance of gravitational force can be anything more than zero. There is no limit, and the force between two masses is never zero, no matter how far apart they are.
Forces are unbalanced when the net force is not equal to?
Forces that are unbalanced have a net force that does not equal zero
Is gravitational force equal to the weight of the fluid displaced by an object?
No. Gravitational force is directed DOWNward. The weight of the displaced fluid is another force, directed UPward. If they happen to be equal, then the net force on the object is zero and it floats. But they don't have to be equal.
Where earth gravitationl force become zero?
Because there is no range limit on the gravitational force, the gravitational force of the earth is only zero in the exact centre of the earth, where it cancels itself out. Realistically, the force is so small outside the immediate vicinity of earth, that it may as well be zero.
When is the gravitational force zero?
When you don't have gravitational interaction between objects.
When is gravity zero?
The force of gravitational attraction between two masses is never zero. There is a force of gravitational attraction between a hair on your head and the smallest moon in the farthest galaxy. The force may be too small to measure, but it's never zero.
Why there will be a point between the earth and the moon at which the gravitational field strength will be zero?
At a point between the Earth and the Moon where the gravitational field strength is zero, the gravitational pull from the Earth and the Moon cancels out, resulting in a net force of zero. This point is known as the L1 Lagrange point, where the gravitational forces are balanced due to the interaction between the gravitational pull of the Earth and the Moon.
A rock is thrown vertically into the air At the very top of its trajectory the net force on it is?
At the very top of its trajectory, the net force on the rock would be equal to zero, since the velocity at that point is momentarily zero. This means that the gravitational force pulling it down is exactly balanced by the force of the throw pushing it up.
Gravitation Force inside a sphere?
The gravitational force inside a solid sphere is zero because the gravitational forces from the parts of the sphere above cancel out the forces from the parts below, resulting in a net force of zero at any point inside the sphere. This is known as the shell theorem.
What would be the magnitude and direction of acceleration which would make the balance reading zero?
The magnitude of the acceleration required to make the balance reading zero would equal the gravitational acceleration acting downwards on the balance. The direction of this acceleration would be upward to counteract the gravitational force acting downward, resulting in a net force of zero on the balance.
Will there be any force acting on a still body other than the gravitational force?
A still body has to be supported by something so not to "fall." That something is exerting an equal but opposite force to the gravitational pull. The net force is zero, so the body stays still. See Newton's third law of motion.
How centripetal force equals to gravitational force?
The centripetal force is equal to the gravitational force when a particular body is in a circle. For a body that is in an orbit, the gravitational force is equivalent to the centripetal force.
Imagine you are holding a heavy book out in front of you. The book is motionless. Why is the book motionless?
You are using your muscles to apply an upward force to the book equal to its weight. That force is equal in magnitude to the downward force on the book due to the gravitational attraction of the earth, and opposite in direction. Since equal and opposite forces are applied to the book, the net force on it is zero, and its acceleration is zero ===> if it began motionless, it remains motionless.
What range of force is the gravitational force?
-- The size (strength, magnitude) of gravitational force can be anything more than zero. -- The direction of gravitational force is always in both directions between the centers of two masses, attracting them toward each other. -- The distance of gravitational force can be anything more than zero. There is no limit, and the force between two masses is never zero, no matter how far apart they are.
