a system undergoes a change from one state to another along two different pathways, one of which is reversible and the other of which is irreversible. what can you say about the relative magnitudes

Auniform crate c with mass mc is being transported to the left by a forklift with a constant speed v1. what is the magnitude of the angular momentum of the crate about point a, that is, the point of contact between the front tire of the forklift and the ground