QJEEM23Ph33af: JEE Main 2023 Physics - Class 11 JEEM23Ph33af Solution: A particle of mass 100 g is projected at time t = 0 with a…

A particle of mass 100 g is projected at time t = 0 with a speed 20 ms$${}^{-1}$$ at an angle 45$${}^{\circ }$$ to the horizontal as given in the figure. The magnitude of the angular momentum of the particle about the starting point at time t = 2s is found to be $$\sqrt{\mathrm{K}}\mathrm{kg}{\mathrm{m}}^2/\mathrm{s}$$. The value of K is ___________.

(Take g = 10 ms$${}^{-2}$$)