# Tension as a function of distance from the centre of a rod AB rotating about its end A [duplicate]

My confusion is-

1) While taking limits, tension at end B of rod is taken 0, The function comes showing maximum Tension at end A.

But it seems to me that that at end A, T must be 0 as x=0 and at end B it must be max. Why?

• – hxri Apr 17 '16 at 14:20
• Read this: Find Tension of the rotating rod at a distance x and see how the tension depends upon the distance as $(L^2-x^2)$ – hxri Apr 17 '16 at 14:22
• If the tension at x = 0 were zero, the rod would not fly off if you let go. – Chet Miller Apr 17 '16 at 14:30