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

`1.2` N

`3.6` N

`2.4 N`

4 N

Text Solution

Verified by Experts

The correct Answer is:

`bar(tau) = F rArr 1 xx 1.6 = 0.4 xx F rArr F = 4N `

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