Plumbing – Drain pipe under sink separated, how to fix

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What would be the best way of reattaching this pipe?

Found some of this product in the tool cabinet, would it be appropriate to use here?

Best Answer

It looks like the tail corroded away, unscrew the nut and take the short pice of pipe to a plumbing store or even a big box and replace both of them. I would probably replace the trap also it may break when you start moving it , a trap and the tail piece nuts seals and all will probably be under 20$ for plastic maybe 15$ .For a complete kit in a bag.