work
In physics, work is the energy transferred to or from an object via the application of force along a displacement. In its simplest form, it is often represented as the product of force and displacement. A force is said to do positive work if (when applied) it has a component in the direction of the displacement of the point of application. A force does negative work if it has a component opposite to the direction of the displacement at the point of application of the force.For example, when a ball is held above the ground and then dropped, the work done by the gravitational force on the ball as it falls is equal to the weight of the ball (a force) multiplied by the distance to the ground (a displacement). When the force F is constant and the angle between the force and the displacement s is θ, then the work done is given by:
W
=
F
s
cos
θ
{\displaystyle W=Fs\cos {\theta }}
Work is a scalar quantity, so it has only magnitude and no direction. Work transfers energy from one place to another, or one form to another. The SI unit of work is the joule (J), the same unit as for energy.
View More On Wikipedia.org
W
=
F
s
cos
θ
{\displaystyle W=Fs\cos {\theta }}
Work is a scalar quantity, so it has only magnitude and no direction. Work transfers energy from one place to another, or one form to another. The SI unit of work is the joule (J), the same unit as for energy.
View More On Wikipedia.org
Creating content since 2001. Untold Media.
Newest Plumbing Threads
-
POTTERTON PROMAX 28 COMBI Boiler - Hot Water Issue
- Started by boiler101
- Replies: 1
-
Hole in copper pipe, solder under floor, T coupling & protection- Started by dreikher
- Replies: 0
-
-
-
-
-
-
-
-
-
Sewer pipe problems not sure about it- Started by sammie81116
- Replies: 3
-
-
-
-
My son has an Apprentice interview- please help.
- Started by LadsDad
- Replies: 3