Question

A rod of length L is hinged at one end and it is rotated with a constant angular velocity in a horizontal plane. Let $T_1$ and $T_2$ be the tensions at the points L/4 and 3L/4 away from the hinged end.

• A. $T_1>T_2$
• B. $T_2>T_1$
• C. $T_1=T_2$
• D. The relation between $T_1$ and $T_2$ deperids on whether the rod rotates clock wise or anticlock wise

Answer 1

The correct option is A $T_1>T_2$

From the figure we consider a part AB of rod. The net force on this part must be towards centre to provide necessary centripetal force required for the rotation of the element.

So, $T_1>T_2$