Q 11-04-034NEETJEE MainEasy
Masses of $3$ kg and $5$ kg hang at the two ends of a light string passing over a smooth, light pulley. The tension in the string is ($g = 10\ \text{m/s}^2$)
Answer: (C) $37.5$ N
Concept. Atwood machine: $T = \dfrac{2m_1m_2g}{m_1 + m_2}$.
Step 1. Substitute. $\dfrac{30}{8} \times 10 = 37.5$ N.
Answer. $37.5$ N (Option C).
Solution by Sreeraj P, M.Sc Physics