Q. Three solids of masses $m_{1},\ m_{2}$ and $m_{3}$ are connected with weightless string in succession and are placed on a frictionless table. If the mass $m_{3}$ is dragged with a force $T$, the tension in the string between $m_{2}$ and $m_{3}$ is
A) $\frac{m_{2}}{m_{1} + m_{2} + m_{3}}T$
B) $\frac{m_{3}}{m_{1} + m_{2} + m_{3}}T$
C) $\frac{{m_{1} + m}_{2}}{m_{1} + m_{2} + m_{3}}T$
D) $\frac{{m_{2} + m}_{3}}{m_{1} + m_{2} + m_{3}}T$
Explanation
(c) $T^{'} = (m_{1} + m_{2}) \times \frac{T}{m_{1} + m_{2} + m_{3}}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.