Airplane flight recorders must be able to survive catastrophiccrashes. Therefore, they are typically encased in crash-resistantsteel or titanium boxes that are subjected to rigorous testing. Oneof the tests is an impact shock test, in which the box must survivebeing thrown at high speeds against a barrier. A 41-kg box isthrown at a speed of 190 m/s and isbrought to a halt in a collision that lasts for a time of6.9 ms. What is the magnitude of the average net force that acts on the box during the collision?