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Another physics question. (pg. 3)
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| Sunsnail |
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| Zild |
| quote: | Originally posted by Nrg2Nfinit
i would think a larger angle would give more flight time at the same velocity |
apologies i meant obtuse you are def right like i said it is somewhere between 45 degrees which is max time of flight and what you have for the other one
wish i could help you out a little more but i took half a xan bar earlier and i'm a little loopy |
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| Krypton |
| quote: | Originally posted by Nrg2Nfinit
i couldnt figure this one out on my exam .. it was tough lets see if anyone can do it here.
2 stones are thrown from the top of a building at 35 m/s. The first one lands after 5 seconds and travels a distance of 150 meters. The second one lands 2 seconds after.
Find.
Both initial angles
The height of the building
The distance for the second stone.
Good luck
I can get all the information for the first one.. but i'm lost with the second one completely |
Answer...
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| bARTovsky |
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| Pokit |
Lucky for you, I had some extra time on my hands and solved it.
You said you solved the first part, so all you need to do is use the height of the building, and the given time for the second stone and look at the motion of the stone in the Y direction only and you can find the Y velocity. Once you find the Y velocity you can just use trig to find the x velocity and use that to find distance.
Edit:
The link below is the solution (in case you can't figure it out)
http://img257.**************/img257/926/photoidb.jpg |
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| Zild |
| dude you're totally ruining his learning process... we already gave him everything he needed to figure it out |
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| Pokit |
| quote: | Originally posted by Zild
dude you're totally ruining his learning process... we already gave him everything he needed to figure it out |
From the looks of his post, he wanted us to solve the problem. |
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| Zild |
| quote: | Originally posted by Pokit
From the looks of his post, he wanted us to solve the problem. |
But he was just one step away and had all the info he needed in his diagram and equations.
to be honest if it was a chem problem i wouldn't have been able to help myself i love that |
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| Pokit |
| quote: | Originally posted by Zild
to be honest if it was a chem problem i wouldn't have been able to help myself i love that |
Yeah, it's not often that stuff like this is posted so I get excited and solve it instead of helping. :toothless |
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| alexf |
| sorry, tbh this is really BASIC stuff. if you werent able to figure that out with the needed formulas and general knowledge maybe you should try out different things other than physics in the future? sorry if that sounds harsh, it's meant as a good advice :) |
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| Chimney |
| quote: | Originally posted by alexf
sorry, tbh this is really BASIC stuff. if you werent able to figure that out with the needed formulas and general knowledge maybe you should try out different things other than physics in the future? sorry if that sounds harsh, it's meant as a good advice :) |
Everytime a scientist gets stuck he should give up and choose another career. That's what Einstein would do.
Great thinking there. |
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| Zild |
| quote: | Originally posted by Chimney
Everytime a scientist gets stuck he should give up and choose another career. That's what Einstein would do.
Great thinking there. |
"Anyone who has never made a mistake has never tried anything new." from the man himself... |
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