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When you say work is done against a force you mean the force does?
Wiki User
∙ 10y ago
Negative work
Wiki User
∙ 10y ago
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When is work said to be done against the force of gravity?
All bodies with mass are attracted to the Earth by gravity, so when a body is raised you must do work to raise it. This work is equal to force x height, if force is in Newtons and height in meters, the work is in units of Joules.
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.
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.
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 an example of an action does no work?
No work is done when you push against something that is too heavy to move. A force has to cause movement for work to have been done.
What is an example of an action the does no work?
No work is done when you push against something that is too heavy to move. A force has to cause movement for work to have been done.
How work done against gravitational force?
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.
What is work done by a coolie walking on a horizontal platform with a load on his head?
The displacement of the load is perpendicular to the direction of force therefore work done by the coolie against the force of gravity is zero.
Where is work done?
If you mean "work" in the way it is used in physics, the basic definition of work is force x distance. In other words, if you apply a force over a certain distance, work is done.
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 .
What is the work done against the gravity when a body is moved horizontally along a frictionless surface?
force?
Is friction will work against force?
Friction will work against force
