If we break the board into half so that its mass is 2 m , how high from jet, should the board be placed so that it remains in equilibrium.

Question

If we break the board into half so that its mass is 2 m ​ , how high from jet, should the board be placed so that it remains in equilibrium.

TestHub · Accepted Answer

v 2 = v 0 2 ​ − 2 g h 2 m g ​ = v R 4 m 2 g 2 ​ = v 2 R 2 as R = v 0 ​ m g ​ 4 v 0 2 ​ ​ = ( v 0 2 ​ − 2 g h ) 2 g h = 4 3 v 0 2 ​ ​ h = 8 g 3 v 0 2 ​ ​

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JEE Advanced (2028)