two persons are holding a rope of negligible weight tightly at its ends so that it is horizontala 15 kg weight is attached to the rope at the mid point which now no longer remains horizontal the minimum tension required to completly strighten the rope is?
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https://www.meritnation.com/ask-answer/question/q-1-a-weight-mg-is-suspended-from-the-middle-of-a-rope-who/laws-of-motion/6515609
https://www.meritnation.com/ask-answer/question/q-1-a-weight-mg-is-suspended-from-the-middle-of-a-rope-who/laws-of-motion/6515609