question_answer

A ball of mass 160 g is thrown up at an angle of 60° to the horizontal at a speed of \[10m{{s}^{-1}}.\]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 \[(g=10m{{s}^{-2}})\]                                                                                        [JEE ONLINE 19-04-2014]

A)   \[1.73kg{{m}^{2}}/s\]

B)        \[3.0kg{{m}^{2}}/s\]

C)   \[3.46kg{{m}^{2}}/s\]\

D)        \[6.0kg{{m}^{2}}/s\]

Correct Answer: C

Solution :

[c] Given : m = 0.160 kg

v = 10 m/s

Angular momentum