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A door 1.6 m wide requires a force of 1 ...

A door 1.6 m wide requires a force of 1 N to be applied at the free and 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

A

1.2 N

B

2.4 N

C

3.6 N

D

4 N

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The correct Answer is:
D
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