One of the rectangular components of a force of $50 N$ is $30 N$ . The other rectangular component will be

40 N

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30 N

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35 N

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45 N

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Solution

The correct option is A $40 N$
$\to F = 50 N F = \sqrt{F_{1}^{2} + F_{2}^{2}} 50 = \sqrt{F_{1}^{2} + (30)^{2}} 2500 - 900 = F_{1}^{2} F_{1}^{2} = 1600, F_{1} = 40 N$

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