Unit of Work: Work done is the product of force and displacement. Using the SI units of force and displacement, i.e., Newton and metre respectively, the unit of work comes out to be ‘Newton metre’. This is given a separate name, Joule, in honour of the British scientist James Prescott Joule. The symbol of joule is J.
Define one joule: When a force of 1 N acts on an object and the object moves a distance of 1 m in the direction of the force, the work done by the force is 1 J.
Other units of work: In c.g.s system of measurement force in dyne,displacement in cm, work is measured in erg.
From W = Fs
If F= 1 dyne, s = 1 cm, then W = 1 erg
Thus, if a force of 1 dyne, displaces the point of application, by 1 cm, in the direction of force, the work done by the force is said to be 1 dyne.
Relation between 1 joule and erg is as follows:
1joule = 1N x 1m
Higher uint of work are kJ =
Unit of work is __________________. | |||
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The C.G.S unit of work is ____________ | |||
Right Option : B | |||
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The unit of work is _____________ | |||
Right Option : B | |||
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