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drek231 [11]
3 years ago
8

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

Physics
1 answer:
posledela3 years ago
3 0
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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