how to take angular momentum on a point on a disk at a distance of r/4 from the radius directly above the radius???

Question

vincent-lyon.fr · Answer

This sentence does not make any sense.

anonymous · Answer

why is it??? we have to determine angular momentum of a pure rolling disc about a point at a distace of r/4 from the centre directly above it.. angular velocity is omega

vincent-lyon.fr · Answer

Well, this one does!

vincent-lyon.fr · Answer

Work out first the angular momentum about the centre of the disc, using moment of inertia of a uniform disc about its axis.

Then swap from centre to desired point by using König's theorem.