Dynamics - Rigid body translation example 3

Thermodynamics: drive.google.com/file/d/1bFzQ...
Mechanics of Materials: drive.google.com/file/d/1P-pc...
Statics: drive.google.com/file/d/1aYY5...
Dynamics: drive.google.com/file/d/1_JTk...

[@Johnngvyn]

Im confused for the perpendicular axis theorem. When we find moment about a different point do we use +mad or md^2

[@wheatlysparble7900]

Thankyou so much for these tutorials ❤

[@HashemAljifri515]

I considered the friction force to the left and got a different answer. I took the moment equation about G1 but I didn't use kinetics diagram in the right of the equation so this might be the reason 🤔