Two masses $m$ and $M$ are attached to the strings as shown in the figure. If the system is in equilibrium, then
Two masses $m$ and $M$ are attached to the strings as shown in the figure. If the system is in equilibrium, then
- A
$\cot \theta=1+\frac{2 m}{M}$
- B
$\tan \theta=1+\frac{2 M}{m}$
- C
$\tan \theta=1+\frac{2 m}{M}$
- D
$\cot \theta=1+\frac{2 M }{ m }$
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Adjoining figure shows a force of $40\, N$ acting at $30^o$ to the horizontal on a body of mass $5 \,kg$ resting on a smooth horizontal surface. Assuming that the acceleration of free-fall is $10\, ms^{-2}$, which of the following statements is (are) correct?
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$[2]$ The weight of the $5\, kg$ mass acts vertically downwards
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$[1]$ The horizontal force acting on the body is $20\, N$
$[2]$ The weight of the $5\, kg$ mass acts vertically downwards
$[3]$ The net vertical force acting on the body is $30\, N$
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