A mass \( M \mathrm{~kg} \) is suspended by a weightless string. Th...

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A mass \( M \mathrm{~kg} \) is suspended by a weightless string. The
\( \mathrm{P} \) horizontal force required to hold the mass at \( 60^{\circ} \) with

W the vertical is
(1) \( M g \)
(2) \( M g \sqrt{3} \)
(3) \( \operatorname{Mg}(\sqrt{3}+1) \)
(4) \( \frac{M g}{\sqrt{3}} \)
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