FrictionEquation constructor

FrictionEquation(
  1. Body bodyA,
  2. Body bodyB,
  3. double slipForce
)

@param slipForce should be +-F_friction = +-mu * F_normal = +-mu * m * g

Implementation

FrictionEquation (Body bodyA, Body bodyB, double slipForce):super(bodyA, bodyB, -slipForce, slipForce);