If this isn't the right sub forum, please scold me and I will ask it in the proper venue. I have a question that is 9/11 related, but it is not a conspiracy question, pure math.
I am trying to calculate the change in velocity of the upper mass of the WTC 1 after the first impact. My givens are a velocity of 7.7 m/s. The upper mass is 92 million lb.
The floors have a live load of 29 million lbs, but weigh themselves about 4.5 million lbs. So my question, using conservation of momentum equation, should m2 be 29M or 4.5M?
Thank you very much in advance for your help.
I am trying to calculate the change in velocity of the upper mass of the WTC 1 after the first impact. My givens are a velocity of 7.7 m/s. The upper mass is 92 million lb.
The floors have a live load of 29 million lbs, but weigh themselves about 4.5 million lbs. So my question, using conservation of momentum equation, should m2 be 29M or 4.5M?
Thank you very much in advance for your help.
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