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OpenStudy (anonymous):
What is the minimum force required to prevent a ball weighing 22.6 lb from rolling down a ramp which is inclined at 39 degrees with the horizontal?
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OpenStudy (perl):
|dw:1364542748379:dw|
OpenStudy (perl):
this is a vector problem
OpenStudy (perl):
the force vector down is 22.6 lb
OpenStudy (anonymous):
so would the answer be 8.8 lb?
OpenStudy (perl):
ok I have done it wrong, let me fix it
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OpenStudy (perl):
|dw:1364547730181:dw|
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