question_answer

A boy of mass \[60\text{ }kg\]is standing over a platform of mass \[40\text{ }kg\]placed over a smooth horizontal surface. He throws a stone of mass \[1\text{ }kg\]with velocity \[u=10\text{ }m/s\]at an angle of \[45{}^\circ \]with respect to ground. The displacement of platform (with boy) on the horizontal when the stone lands on the ground is\[(g=10m/{{s}^{2}})\,5N\,cm.\]Find the value of N?

Answer:

2