I would like to know your opinion about a question
Everything ist idealized. This means there exists no friction or other forces which would ruin the 'Beauty and simplicity' of this question which are aiming to demonstrate a specific law or rule.
A Ball with a moment of intertia $I$ and a linear speed (speed of the Center of mass) $V$ Rolls without any skipping or whatsoever (just roll movement so linear and rotation) and then this balls climbs an inclined plane. The question is: At the top of the plane, the ball finds it self in position of rest (thus no movement and no rotation ) how do you justify this in relation of the conservation of angular momentum?
So personally i do not understand this question, since there is obviously a a Torque being applied by the gravitational force while climbing the plane and thus it reduces its angular velocity to 0
(this is a question from an exam so i guess i misunderstood it)
Where as we know that Angular momentum $L$ is given to be $L = \omega *I $ How is it conserved and How do you answer this question.