What is the definiton of one Joule in terms of work done?


1 joule is defined as the work done in displacing a body through 1 m under the influence of 1 N of force in the direction of force.

1 J = 1 N x 1 m


Work is the product of the component of the force in the direction of the displacement and the magnitude of this displacement.

The above statement is expressed as follows:

W = (F cos θ) d

W = F. d


  • W is the work done by the force.
  • F is the force, d is the displacement caused by the force
  • θ is the angle between the force vector and the displacement vector

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