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Nov
24
comment What is the meaning of change of angular momentum of a ballistic object during its flight?
You are correct.
Nov
22
comment What is the meaning of change of angular momentum of a ballistic object during its flight?
Gravity, however does not exert Torque on the stone, so the stone's ANGULAR momentum shouldn't change until it hits the ground. There is nothing (in the absence of an atmosphere) that opposes the ball's spinning. Apologies for double post - character limit.
Nov
22
comment What is the meaning of change of angular momentum of a ballistic object during its flight?
Throughout the stones' flight, both gravity and air resistance are acting on them to change their momentum. Gravity exerts a force on an object pulling it towards the center of the earth - changing it's momentum. Air resistance applies the same way, though from the trajectories graphed it looks like air resistance is being ignored. So as soon as the rock leaves the hand of the person throwing it, gravity begins changing it's momentum.