A ball of mass 160 g is thrown up at an angle of $\;60^{0}\;$ to the horizontal at a speed of $\;10\;ms^{-1}\;$. the angular momentum of the ball at the highest point of the trajectory with respect to the point from which the ball is thrown is nearly $\;(g=10\;ms^{-2})\;$

Question

$(a)\;1.73\;kg\;m^{2}/s\qquad(b)\;3.0\;kg\;m^{2}/s\qquad(c)\;3.46\;kg\;m^{2}/s\qquad(d)\;6.0\;kg\;m^{2}/s$