Airplane flight recorders must be able to survive catastrophiccrashes. Therefore

Question

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 theaverage net force that acts on the box during the collision?
1 N

Explanation / Answer

Since you want Newtons as your units in the answer let's firstconvert 6.9ms to seconds --> 6.9*10^(-3)s Then, keeping in mind that N=kg*m/s2.... Multiply the mass by the velocity and then divide by the timefor your answer.

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