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[" A door "1.6m" wide requires a force o...

[" A door "1.6m" wide requires a force of "1N" to be "],[" applied at the free end to open or close it.The force "],[" that is required at a point "0.4m" distance from the "],[" hinges for opening or closing the door is "]

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A door 1.6 m wide requires a force of 1 N to be applied at the free end to open or close it. The force that is required at a point 0.4 m distant from the hinges for opening or closing the door is

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