A block of mass rests on top of a second block of mass and the second block sits on a su...

A block of mass rests on top of a second block of mass and the second block sits on a surface that is so slippery that the friction can be assumed to be zero (see Fig. P3.93). (a) If the coefficient of static friction between the blocks is how much force can be applied to the top block without the blocks slipping apart? (b) How much force can be applied to the bottom block for the same result?