Q: A thin rod of mass m and length l is rotating in the horizontal plane about its one of the ends with constant angular velocity ω . The tension at the middle point of the rod is
(a) $m l \omega^2 $
(b) $\frac{m}{4} l \omega^2$
(c) $\frac{3 m}{4} l \omega^2$
(d) $\frac{m l \omega}{4} $
Ans: (c)