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OpenStudy (anonymous):
physics problem.
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OpenStudy (anonymous):
A ball is thrown horizontally from the top of a 20-m high hill. It strikes the ground at an angle of 60◦ . With what speed was it thrown?
OpenStudy (anonymous):
hmm. if it would strike at almost 90°, that would indicate it just fell down. also, if it was shot by a gun it would still have lots of velocity that is greater than the gravity when it touches the ground.
OpenStudy (anonymous):
hmmm ok. Any idea how to solve it?
OpenStudy (anonymous):
theoretically, the push horizontally does not change the time it takes for the ball to fall down
OpenStudy (anonymous):
Right. so it should take around 2 seconds right?
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OpenStudy (turingtest):
please post this in the physics section, thanks
OpenStudy (anonymous):
Ok. sorry.
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