The force required to open a nut using a spanner of length 90 cm is 50 N. Calculate the force required if the spanner is 50 cm long.

60 N

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45 N

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75 N

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90 N

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Solution

The correct option is D
90 N

Moment required to open nut will always be same.

So, $F_{1} d_{1} = F_{2} d_{2}$

$\Rightarrow 50 \times 90 = F_{2} \times 50$

$\Rightarrow F_{2} = 90 N$

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Similar questions

A spanner of length 10cm is used to open a nut by applying a minimum force of 0.5N.calculate the moment of force required.

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