The figure shows a block of mass m resting on a 20 degree slope. The block has coefficients of friction us(static friction)=0.64 and uk(kinetic friction) with the surface slope. It is connected using a very light string over an ideal pulley to a hanging block of mass 2.0 kg. The string above the slope pulls parallel to the surface. What is the minimum mass m so the system will remain at rest when it is released from the rest?