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Question
why when we calculated the work we multiplied force * distance not F/D i.e division what is the meaning
By definition, the work done by a force acting on a body is the product of the magnitude of the displacement by the component of force in the direction of the displacement.
It could have been defined some other way, but that is the way it is. And it is very valuable quantity because it tells us how much energy we must expend to move a body. Force divided by distance doesn't tell us anything useful.
Paul
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Answers by Expert:
Paul Soderman
Expertise
Aeronautics, Fluid Mechanics, Aeroacoustics, Noise Control, Muffler Design, Wind Tunnel Research.... I know nothing about India - do not ask about schools, jobs, application requirements, career choices, etc. for India. Please, no text message verbiage; I prefer full words in full sentences. Thanks.
Experience
38 years as research engineer at NASA
Publications
AIAA, NASA
Education/Credentials
B.S. and M.S. Aeronautical Engineering - U. of Washington
Graduate work Standford U.
Awards and Honors
AIAA Associate Fellow (American Institute of Aeronautics and Astronautics)
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