Question

A mass of 10 kg is suspended by a rope of length 2.8m from a ceiling. A force of 98 N is applied at the midpoint of the rope as shown in figure. The angle which the rope makes with the vertical in equilibrium is

Moderate

Solution

According to Lami’s theorem $\frac{F_{1}}{\sin α} = \frac{F_{2}}{\sin β}$

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