Masterman
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« on: 21 April, 2008, 10:10:08 pm » |
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I didn't pay attention at all today.....
Find the acceleration of an object whose speed changes from 0m/s to 30m/s in 1.5 seconds. If the car moves at a steady rate for 1.5 more seconds, what is it's momentum?
...........I crashed hard today.
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Fooby
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« Reply #1 on: 21 April, 2008, 10:21:30 pm » |
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Wasn't momentum (I can't remember the symbol... p, or something) p=mv?
I think? ._.
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Fooby
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« Reply #2 on: 21 April, 2008, 10:23:26 pm » |
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v(final) = v(initial) + at
a = (vf-vi)/t
I don't know about the second one, I may have messed up my variables. Stick with the top one, isolate a on paper.
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Masterman
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« Reply #3 on: 21 April, 2008, 10:27:05 pm » |
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Got the first one.
Thing is though, the 2nd question says nothing about velocity or mass. I'm starting to think she either made a mistake making the 2nd part, or just trying to **** us off.
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