A man of mass M stands on a.box of mass m as shown in the Fig. 2E. l (a). A rope attached to 'the box and passing over an overhead pulley allows the man to raise himself and the box by , pulling the rope downward.
(i) With what minimum force should the ' man pull the rope so as to prevent himself , from falling down.
(ii) If the man pulls the rope with a force F greater than the minimum force, then determine the acceleration of the (man + box) system.
(iii) Determine. the normal reaction between the man and the trolley.