Asked by Anonymous
A 5.55 kg block covered in sandpaper is pushed along the ceiling of a room under construction. The block is pushed across the ceiling with a force of 77.9 N directed at an angle of 71.5° to the horizontal. If the coefficient of kinetic friction between the paper and the ceiling is 0.574, what acceleration does the block undergo?
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Answered by
MathMate
See:
http://www.jiskha.com/display.cgi?id=1253984237
http://www.jiskha.com/display.cgi?id=1253984237
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