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Work, Energy And Power

Question
CBSEENPH11017121

Define work.

Solution
Work is said to be done if force acting on a body displaces the body through a certain distance in the direction of force applied.
The work is equal to the product of displacement and component of force in the direction of displacement,
i.e.          space space space space space space space W equals left parenthesis F cos theta right parenthesis S 
                      equals F S cos theta space equals space F with rightwards arrow on top times S with rightwards arrow on top