Strike a billiard ball so it rolls wo slipping

1
Strike a billiard ball so it rolls w/o slipping?
If we use the line of action of the impulse as
the fulcrum, there are NO torques !
The angular momentum is the same before and after
the impulse.
2
Speed at which a sliding ball rolls w/o slipping ?
at release
alley exerts friction
rolls w/o slipping
Use conservation of angular momentum about the
point-of contact with the floor, so there are
no torques.