question_answer

A particle of mass 20 g is released with an initial velocity 5 m/s along the curve from the point A, as shown in the figure. The point A is at height h from point B. The particle slides along the frictionless surface. When the particle reaches point B, its angular momentum (in \[kg\,{{m}^{2}}/s\]) about O will be \[\left( Take\text{ }g=10\text{ }m/{{s}^{2}} \right)\]  

Answer:

6