Simulation: Near-Threshold Equilibrium
Use a high-friction setup where static friction can just hold. Nudge applied force around the threshold and watch net force flip from zero to non-zero.
Appears in: 2.2 Equilibrium and Net Force, 2.4 Friction Thresholds and Net-Force Balance
Net Force Lab
Free-body visualization
Max static friction
11.77 N
Net force
6.23 N
Acceleration
1.557 m/s²
State
Sliding
The applied-force vector exceeds static-friction capacity, so a non-zero net-force vector appears and the block accelerates in that direction.