By adding spring and damping forces.
The /suspensionSpring.spring/ force attempts to reach the target position. A larger value makes the suspension reach the target position faster.
The /suspensionSpring.damper/ force dampens the suspension velocity. A larger value makes the suspension reach the goal slower.
The suspension tries to reach /suspensionSpring.targetPosition/, which is the rest length of
the suspension along the
suspensionDistance. Zero value maps to full extension along the
suspension travel, a value of one maps to fully compressed suspension.
Default value is zero, which matches the behavior of regular car's suspension.