} //GotoNewTime
public void CalculateNetForce()
{
Vector2d net = new Vector2d();
this.forceComponents = new List <Vector2d>();
foreach (Rezinochka r in rezinochki)
{
Vector2d force = r.CalculateForce(this);
this.forceComponents.Add(force);
net += force;
}
forceNet = net;
}