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Why does weight decrease in coal mines?

Why does weight decrease in coal mines?

As you go down below the Earth’s surface, in a mine shaft for example, the force of gravity lessens. Weight and gravitational pull continue to decrease as you get closer to the centre of the Earth. There’s no gravitational pull and you’d be weightless”.

When a body of mass m is taken to the bottom of its weight?

Because the body taken up against gravitation accelaration. Mass of body is irrespective to gravitational field, but weight depends on gravitational field. g(eff) varies linearly to depth and maximum effective g is at the surface of the earth so going to depth, g decreases , thus weight decreases.

Why do miners feel less weight inside mine?

The weight of a body in a coal mine is less than that at the surface of the Earth because in the coal mine there are also part of the Earth attracting the body upward. The upward force of the upper portion of the Earth and the downward force of the lower portion of the Earth will effectively subtract from each other.

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What happens to your weight when your mass increases?

As your body grows, you will have more mass, which also means you will weigh more. That’s because when you’re on the earth, the amount of gravity that pulls on you stays the same. So when your mass changes, so does your weight!

Why the weight of a body decreases with increase in distance from the earth’s surface?

Weight of a body is the force experienced by the body due to gravity. The weight of a body decreases with increase in distance from the earth ‘s surface because weight is inversely proportional to the distance of body from the surface of earth.

Is weight and mass of a body are equal at sea level on the surface of the earth?

Weight and mass of a body are equal at sea level on the surface of the Earth.

When a body is taken from equator to pole?

The correct answer is Increases. When a body is taken from equator two poles its weight increase because of the acceleration due to gravity increases. The rotation of the earth about its own axis also produces a force on the body. This effect will further reduce the weight of the body.

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When a body is taken from the equator to the pole its weight?

Detailed Solution. The correct answer is Its weight increases. When a body is taken from the equator to the poles, its weight increases because the acceleration due to gravity increases.

Why is gravitational force more solid than liquid?

The effect of gravitation can be seen more on liquids than on solids due to more intermolecular spaces of liquid than that of solids. When the ball is thrown up from the ground, we take the initial velocity u as positive, the height it reaches h upwards as positive, g is negative.

What will be the value of G if mass of the Earth becomes four times?

So, if the mass alone is increased by four times (4M) the value of ‘g’ will become 4GM/r^2.

How does mass relate to weight?

Mass is a measure of how much force it will take to change that path. Weight, on the other hand, is a measure of the amount of downwards force that gravity exerts on an object. This force increases with the object’s mass: the more inertia it has, the harder gravity pulls.

What happens to the mass and weight of an object that is launched into space where the pull of gravity is less?

What happens to the mass and weight of an object that is launched into space, where the pull of gravity is less? The mass decreases while the weight stays constant.

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What happens to mass at the bottom of a deep mine?

At a depth d below the surface of the Earth, the acceleration due to gravity at that place decreases and since mass remains constant, weight decreases. This discussion on A body of mass m is taken to the bottom of a deep mine.

How does the weight of a body change in a mine?

If the body is taken to a depth h in a mine, change in its weight is: Weight of a body of mass m decreases by 1\% when it is raised to height h above the earth’s surface. If the body is taken to a depth h in a mine, change in its weight is:

What happens to your weight when you move away from the Earth?

As you travel away from the Earth’s surface, your mass stays the same but your weight reduces as gravitational pull decreases. Gravitational pull will also change subtly as you move around the surface of the Earth, varying with latitude and local topology, as the Earth is not a perfect sphere.

Why does your weight decrease when you go up a mountain?

As you travel away from the Earth’s surface, your mass stays the same but your weight reduces as gravitational pull decreases. But generally speaking, gravitational pull, and therefore weight, is lower on a mountain than at sea level, says Bell.