relationship between force and gravity

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Im wondering how the relationship between the two forces works. For example if you take something that has constant tension like a tuned guitar string is there a difference in its interaction with the force of gravity with tension or without it or not really? It is two different units of force like Newtons and KiloPascals and i wonder if they or how they affect oneanother..

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6 Answers

Anonymous 0 Comments

Gravity doesn’t care if a string is under tension or not. On earth it is still trying to accelerate the entire string “down” at 9.8 m/s^2. Whether its tight on an instrument or laying in a pile on a shelf. The only difference is how the other forces may support the string against gravity’s pull. But being tight under tension doesn’t change how much the string is being accelerated by gravity.

Anonymous 0 Comments

For the purposes of your question, those “forces” are the same type of phenomenon and can be added together. [Technically, gravity is not a force, but let’s ignore that.] So yes, it does make a difference whether there is (Earth’s) gravity or not for a tensed guitar string, just not very much.

As an example, imagine a glass of water inside a car which is travelling along a road at constant speed. Let’s say the water is completely “level” for now, as it is travelling at the same speed as the car, so there’s no accelerating forces acting on it other than the Earth’s gravity pulling it downward, thus keeping it inside the glass. Now the road curves to the left. The car is following that curve, but what about the water inside the glass? It will experience a force pulling it to the right, thus making its surface skew to the right. That’s the effect of the centripedal force, as the water wants to keep travelling in a straight line but the car is pulling the glass to the left.

These two forces can be measured in Newton and calculated beforehand. The resulting force looks as if it would act to the bottom right of the car. But Earth’s gravity and the centripedal force are both still there, it’s just their combined effect acting on the water now. That’s exactly how the guitar string and Earth’s gravity interact, both having their own force independent of each other, but the resulting combined force being the one that actually acts on the object of the guitar string.

A good thought experiment is always to overexaggerate one of the forces and looking into what would happen then. How would the guitar string tension change if Earth’s gravity was one million times stronger? Well, it would pull on the string much much more, thus increasing its tension to the side where Earth is. If the guitar was laying levelly on the floor, the string would bend downwards in the middle.

Anonymous 0 Comments

Gravity doesn’t care if a string is under tension or not. On earth it is still trying to accelerate the entire string “down” at 9.8 m/s^2. Whether its tight on an instrument or laying in a pile on a shelf. The only difference is how the other forces may support the string against gravity’s pull. But being tight under tension doesn’t change how much the string is being accelerated by gravity.

Anonymous 0 Comments

Gravity doesn’t care if a string is under tension or not. On earth it is still trying to accelerate the entire string “down” at 9.8 m/s^2. Whether its tight on an instrument or laying in a pile on a shelf. The only difference is how the other forces may support the string against gravity’s pull. But being tight under tension doesn’t change how much the string is being accelerated by gravity.

Anonymous 0 Comments

For the purposes of your question, those “forces” are the same type of phenomenon and can be added together. [Technically, gravity is not a force, but let’s ignore that.] So yes, it does make a difference whether there is (Earth’s) gravity or not for a tensed guitar string, just not very much.

As an example, imagine a glass of water inside a car which is travelling along a road at constant speed. Let’s say the water is completely “level” for now, as it is travelling at the same speed as the car, so there’s no accelerating forces acting on it other than the Earth’s gravity pulling it downward, thus keeping it inside the glass. Now the road curves to the left. The car is following that curve, but what about the water inside the glass? It will experience a force pulling it to the right, thus making its surface skew to the right. That’s the effect of the centripedal force, as the water wants to keep travelling in a straight line but the car is pulling the glass to the left.

These two forces can be measured in Newton and calculated beforehand. The resulting force looks as if it would act to the bottom right of the car. But Earth’s gravity and the centripedal force are both still there, it’s just their combined effect acting on the water now. That’s exactly how the guitar string and Earth’s gravity interact, both having their own force independent of each other, but the resulting combined force being the one that actually acts on the object of the guitar string.

A good thought experiment is always to overexaggerate one of the forces and looking into what would happen then. How would the guitar string tension change if Earth’s gravity was one million times stronger? Well, it would pull on the string much much more, thus increasing its tension to the side where Earth is. If the guitar was laying levelly on the floor, the string would bend downwards in the middle.

Anonymous 0 Comments

For the purposes of your question, those “forces” are the same type of phenomenon and can be added together. [Technically, gravity is not a force, but let’s ignore that.] So yes, it does make a difference whether there is (Earth’s) gravity or not for a tensed guitar string, just not very much.

As an example, imagine a glass of water inside a car which is travelling along a road at constant speed. Let’s say the water is completely “level” for now, as it is travelling at the same speed as the car, so there’s no accelerating forces acting on it other than the Earth’s gravity pulling it downward, thus keeping it inside the glass. Now the road curves to the left. The car is following that curve, but what about the water inside the glass? It will experience a force pulling it to the right, thus making its surface skew to the right. That’s the effect of the centripedal force, as the water wants to keep travelling in a straight line but the car is pulling the glass to the left.

These two forces can be measured in Newton and calculated beforehand. The resulting force looks as if it would act to the bottom right of the car. But Earth’s gravity and the centripedal force are both still there, it’s just their combined effect acting on the water now. That’s exactly how the guitar string and Earth’s gravity interact, both having their own force independent of each other, but the resulting combined force being the one that actually acts on the object of the guitar string.

A good thought experiment is always to overexaggerate one of the forces and looking into what would happen then. How would the guitar string tension change if Earth’s gravity was one million times stronger? Well, it would pull on the string much much more, thus increasing its tension to the side where Earth is. If the guitar was laying levelly on the floor, the string would bend downwards in the middle.