Задача 10641.

A ball of mass m thrown at an angle to the horizon with a muzzle velocity Vo. Find the magnitude of the moment of momentum of the ball relative to the point of throwing in the top of the trajectory, if the maximum lifting height H is equal to (make a drawing indicating the directions of the vectors of speed and angular momentum). air resistance neglected.

Detailed solution with a short recording conditions, laws and formulas used in the decision, the withdrawal of the calculation formula and the answer.
If you have any questions about the decision to write. I try to help.