question_answer

A particle is projected at an angle of \[60{}^\circ \] above the horizontal with a speed of \[10\text{m}{{\text{s}}^{-1}}\]. After some time, the direction of its velocity makes an angle of \[30{}^\circ \] above the horizontal. The speed of the particle at this instant is \[\frac{2n}{\sqrt{3}}\text{m}\,{{\text{s}}^{-1}}\]. The value of n is ____.

Answer:

5.0