This is a bit of a general question. Say that there's a block on a ramp, with a (massless) rope attaching it to the top of a ramp. If we're given values for the mass of the block, maximum tension, and coefficients of static and kinetic friction, how would we determine the friction or tension? My interpretation is that if static friction is enough to counter gravity, then the tension is zero. On the other hand, if static friction is not enough, I can't convince myself of what the tension force will equal. Would it be the gravity in the ramp direction minus the maximum static friction? Or, do we have to take into account kinetic friction? In general, I'm really confused :). Your help would be appreciated.