A man of mass
M is standing on a plank kept in a box. the plank and box as a whole has mass
m. A light string passing over a fixed smooth pulley connects the man and box. If the box remains stationary, find the tension in the force exerted by the man on the plank.
![1017073_705864e260544fb79643b5447e6978b5.png](https://search-static.byjusweb.com/question-images/toppr_invalid/questions/1017073_705864e260544fb79643b5447e6978b5.png)