Airplane flight recorders must be able to survive catastrophiccrashes. Therefore
ID: 1739543 • Letter: A
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 260 m/s and isbrought to a halt in a collision that lasts for a time of7.3 ms. What is the magnitude of theaverage net force that acts on the box during the colision?N
Please help me! 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 260 m/s and isbrought to a halt in a collision that lasts for a time of7.3 ms. What is the magnitude of theaverage net force that acts on the box during the colision?
N
Please help me!
Explanation / Answer
impulse =F*t = P (change in momentum) P1 = 41kg*255m/s, P2 = 0 F = P/t = 41kg*255m/s / 6.6*10-3 s =1.58*106 N the froce is about 1.58*106NRelated Questions
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