A block of mass m is pushed towards a movable wedge of mass nm and height h, with a…

Physics · JEE Advanced · NTA Exams — Laws of Motion

A block of mass m is pushed towards a movable wedge of mass nm and height h, with a velocity u. All surfaces are smooth. The minimum value of u for which the block will reach the top of the wedge is :

1. \(\sqrt{2 \mathrm{gh}}\)
2. \(\sqrt{2 \mathrm{ngh}}\)
3. \(\sqrt{2 g h\left(1+\frac{1}{n}\right)}\)
4. \(\sqrt{2 g h\left(1-\frac{1}{n}\right)}\)

Answer

(C) 2 g h (1+ 1 n )

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