Question

A weight Mg is suspended from the middle of a rope whose ends are at the same level. The rope is no longer horizontal. The minimum tension required to completely straighten the rope is a) Mg/2 b)Mg cos theta c) 2Mg cos theta d)infinitely large

Answer 1

Formula is Mg = 2T sin(theta)

                T = Mg/2 sin theta

Given, Rope is no longer horizontal so, theta = 0 

so, T = Mg/2 sin(0)

         = Mg/2 * 0

         = Infinite


So option (D) is the answer.



Hope this helps!

Answer 2

Answer:

the tension is infinitely large

Explanation:

the angle is 0