sometimes the question comes up how to do phent_addforceglobal()/phent_addforcelocal() with newton.

here is a short (untested) code snippet:
Code:

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newton_bodyaddforceglobal(NewtonBody *body, VECTOR *force, VECTOR *point) // add force at point in global coordinate system
{
  ENTITY *entity = (ENTITY*)NewtonBodyGetUserData(body);
  VECTOR r, torque;
  vec_diff(r, point, entity->x);
  vec_cross(torque, r, force);
  NewtonBodyAddForce(body, force);
  NewtonBodyAddTorque(body, torque);
}

newton_bodyaddforcelocal(NewtonBody *body, VECTOR *force, VECTOR *point) // add force at point in entity coordinate system
{
  ENTITY *entity = (ENTITY*)NewtonBodyGetUserData(body);
  VECTOR globalforce, globalpoint;
  vec_set(globalforce, force);
  vec_set(globalpoint, point);
  vec_rotate(globalforce, entity->pan);
  vec_rotate(globalpoint, entity->pan);
  vec_add(globalpoint, entity->x);
  newton_bodyaddforceglobal(globalforce, globalpoint);
}

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i think lite-c still doesn't come with a vec_cross() function so you have to do one yourself.

(...and i guess you also should apply QUANTTOMETER in those functions.)