Q 11-04-011NEETNEET 2020Top questionEasy
Two bodies of mass $4$ kg and $6$ kg are tied to the ends of a massless string. The string passes over a pulley which is frictionless (see figure). The acceleration of the system in terms of acceleration due to gravity (g) is :
Answer: (C) g/5
Concept. Atwood machine: $a = \dfrac{(m_2 - m_1)g}{m_1 + m_2}$.
Step 1. Substitute. $\dfrac{2g}{10} = \dfrac g5$.
Answer. g/5 (Option C).
Solution by Sreeraj P, M.Sc Physics