relating to the motion of material bodies and their forces
For applied forces greater than the maximum force of static friction the block starts to slip and then the value for friction becomes kinetic friction (fk) and the box is then under a net force so it accelerates to the right.
For applied forces greater than the maximum force of static friction the block starts to slip and then the value for friction becomes kinetic friction (fk) and the box is then under a net force so it accelerates to the right.