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OpenStudy (anonymous):
A train goes up a hill with a 15º incline. If the train has constant speed of 22 m/s, what are the vertical and horizontal components of the train's velocity? (Remember to use the law of sine and cosines for this problem)
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OpenStudy (experimentx):
|dw:1348241059409:dw|
OpenStudy (anonymous):
Oh. That was really simple. I feel silly. But how do you know when to use sin & cos? Or does it not matter?
OpenStudy (anonymous):
right
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