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Lift any object. Grav. force is acting down, you must apply an upward force to lift the object.

Work is force applied through a distance, so work is done if you lift it, but not if you hold it still.

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12y ago

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What is gravitational energy definition?

Gravitational energy is a kind of potential energy - work done against a force.Gravitational energy is a kind of potential energy - work done against a force.Gravitational energy is a kind of potential energy - work done against a force.Gravitational energy is a kind of potential energy - work done against a force.


Why gravitational potential is negative?

Gravitational potential is considered negative because work needs to be done to move an object from an infinite distance to a certain point in the gravitational field. As the object moves closer to a massive body, the potential energy decreases, resulting in a negative value to reflect the work done against the gravitational force.


When a ball rises vertically to a height h and returns to its original point of projection the work done by the gravitational force is?

The work done would be calculated by 2mgh. The force on the ball is calculated by mg, and work done is by Fd, where d is 2h (the force acts on both upwards height and downwards height, thus twice the distance).


What work is done when the cushion is picked up and put on the couch?

When the cushion is picked up and put on the couch, work is done against the force of gravity. The work done is equal to the force exerted multiplied by the distance the cushion is lifted. This work provides the cushion with gravitational potential energy as it is raised to a higher position.


Is the gravitational force is a conservative force?

Yes, gravitational force is a conservative force. This means that the work done by gravity does not depend on the path taken by an object, but only on the initial and final positions.

Related Questions

Why when you push an object across a desk the work done is not equal to the change in gravitational potential energy?

In this case, you are not doing work against the force of gravity, but against the force of friction.


What is the definition for gravitation energy?

Gravitational energy is a kind of potential energy - work done against a force.Gravitational energy is a kind of potential energy - work done against a force.Gravitational energy is a kind of potential energy - work done against a force.Gravitational energy is a kind of potential energy - work done against a force.


What is gravitational energy definition?

Gravitational energy is a kind of potential energy - work done against a force.Gravitational energy is a kind of potential energy - work done against a force.Gravitational energy is a kind of potential energy - work done against a force.Gravitational energy is a kind of potential energy - work done against a force.


What is the work done when a force of 20N moves a book 3.5M what is the potential energy?

The idea is to multiply force times distance. This assumes that both are in the same direction, and that the force is constant. If the force is done against a gravitational field, or some other so-called "conservative force", then all the work done will be converted to potential energy. If it is done against friction, the work is basically wasted. It is converted to heat, and NOT to potential energy.


Why gravitational potential is negative?

Gravitational potential is considered negative because work needs to be done to move an object from an infinite distance to a certain point in the gravitational field. As the object moves closer to a massive body, the potential energy decreases, resulting in a negative value to reflect the work done against the gravitational force.


When a ball rises vertically to a height h and returns to its original point of projection the work done by the gravitational force is?

The work done would be calculated by 2mgh. The force on the ball is calculated by mg, and work done is by Fd, where d is 2h (the force acts on both upwards height and downwards height, thus twice the distance).


What work is done when the cushion is picked up and put on the couch?

When the cushion is picked up and put on the couch, work is done against the force of gravity. The work done is equal to the force exerted multiplied by the distance the cushion is lifted. This work provides the cushion with gravitational potential energy as it is raised to a higher position.


When you say work is done against a force you mean the force does?

Negative work


Why you do lose balance while ride the bicycle slow?

I believe when you ride cycle fast you ride it against the gravitational force but when you ride the cycle slow you don't have enough force to work against the gravitational force.


Is the gravitational force is a conservative force?

Yes, gravitational force is a conservative force. This means that the work done by gravity does not depend on the path taken by an object, but only on the initial and final positions.


How much work is done by the gravitational force when a 256 kg pile driver falls 2.80m?

work is not by the force . work is done by the body against or for the force. since work is force x displacement it will be 265x2.40 =636 N .and since work is done for the gravity work done will be -ve so it will be -636 N .


Is work being done when someone is sitting on a cushion on the floor?

Well. Work is being done. While sitting down, the person does not apply any force. He lets himself be dragged down by gravity. During this process, the gravitational force is doing the work. The work done by the gravitational force is stored as the potential energy present in the compressed cushion.