A block of mass m1 = 4.0 kg is at rest on a plane that makes an angle = 30.0
above the horizontal. The coefficient of static friction between the block and the incline is 0.47. The block is attached to a second block of mass m2 that hangs freely by a string that passes over a friction-less and mass-less pulley.
(a) Find the range of possible values for m2 for which the system will be in static equilibrium. kg (m2,max) kg (m2,min)
(b) What is the magnitude of the frictional force on the 4.0 kg block if m2 = 1.0 kg?