1. The problem statement, all variables and given/known data a disk is rolling on a flat horizontal surface.only rolling friction will act on the body.(true/false).ans false WHY?a body rolls.therefore sliding friction can't act on body.(true/false).ans. false WHY? 2. Relevant equations 3. The attempt at a solution since the point of contact is at rest with respect to the surface (rolling condition) therefore no sliding friction must be there.