1. The problem statement, all variables and given/known data Lets say that a person called A rides his motorcycle. When this person turns, he tilts his motorcycle on a horizontal road. Is the normal force still normal to the surface or does it point in the same direction as the person sitting on the bike? 3. The attempt at a solution Ok, here's my line of thought: I think it is still perpendicular to the horizontal road, because if it wasn't, then he would have a net force pointing inwards (not counting in centripetal force). What I mean is: The Tower of Pisa doesn't accelerate just because it titls - am I correct?