1. The problem statement, all variables and given/known data A cube of side l rests on a rough floor. It is subjected to a steady horizontal pull F, exerted a distance h above the floor as shown below. As F increases, the block will either begin to slide, or begin to tip over and thus rotate. Determine the coefficient of static friction so that (a) the block begins to slide rather than tip; (b) the block begins to tip. [Hint: Where will the normal force on the block act if it tips?] 2. Relevant equations fs=(u(s))(N) 3. The attempt at a solution I'm not even sure where to start this problem. With no values the equation for the coefficient of static friction seems useless.