Two bodies of mass 2 kg and 8 kg are tied to the ends of a massless string. The string passes over a

Question

Two bodies of mass 2 kg and 8 kg are tied to the ends of a massless string. The string passes over a pulley which is frictionless. The acceleration of the system in terms of acceleration due to gravity $(g)$ is

Professor PC Thomas Classes · Answer

For an Atwood machine, $a = \frac{m_2 - m_1}{m_2 + m_1}g$. Here $m_2 = 8 \mathrm{~kg}$ and $m_1 = 2 \mathrm{~kg}$. $a = \frac{8 - 2}{8 + 2}g = \frac{6}{10}g = \frac{3}{5}g$.