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10x-08 San Francisco Trolley #2

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    We're here at the San Francisco trolley station.
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    Now, the trolleys in San Francisco have a lot of mass.
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    The hills in San Francisco are quite steep.
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    In order to keep a decent pace going up these hills,
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    these trolleys need to have a lot of power.
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    In this problem, you're going to make some calculations involving
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    the power of a San Francisco trolley.
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    So, my question is if you have a cable car with a mass of 2000 kg
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    on a hill inclined at 10 degrees and it needs to keep moving up
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    at a constant pace of 25 kg per hour, what is the necessary power?
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    Now, there's two ways to solve this problem.
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    One involves using an equation that you learned in one of the problem sets,
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    and actually this would be a nice, simple, easy way to solve it.
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    The other would require a little bit more work and would involve the definition
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    of power that you learned in class.
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    You can enter your answer here in watts.
Cím:
10x-08 San Francisco Trolley #2
Video Language:
English
Team:
Udacity
Projekt:
PH100 - Intro to Physics
Duration:
0:52
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