alajahb1051 alajahb1051

22-03-2018
Physics

contestada

A handle or knob is fixed at free end of door.why?

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altafmushrafp5fo2o altafmushrafp5fo2o

22-03-2018

this is because of something called moments,
moment is the turning Effect of a force.
it is calculated by
moment=force×perpendicular distance from the line of action.
So if there is more distance from pivot the more the moment is for the same force.

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