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Q.
Which figure represents the correct $F.B.D.$ of a rod of mass $m$ as shown in the figure:
NTA AbhyasNTA Abhyas 2022
Solution:
Force exerted by string is always along the string and of pull type. When there is a contact between a point and a surface the normal reaction is perpendicular to the surface and of push type. Gravity or weight always acts vertically downward.
