A light unstretchable string passing over a smooth light pulley c… - Vidyadip

MCQ

A light unstretchable string passing over a smooth light pulley connects two blocks of masses $m_1$ and $m _2$. If the acceleration of the system is $\frac{ g }{8}$, then the ratio of the masses $\frac{ m _2}{m_1}$ is:

A
$9: 7$
B
$4: 3$
C
$5: 3$
D
$8: 1$

✓

Answer

$a_{s y s}=\left(\frac{m_2-m_1}{m_1+m_2}\right) g=\frac{g}{8}$
$\Rightarrow \frac{m_2}{m_1}=\frac{9}{7}$

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