A postal worker pushes a 160 n bag of mail up a 31 degree
A postal worker pushes a 160 N bag of mail up a 31 degree ramp at a constant velocity. The ramp exerts a frictional force of 30 N on the bag. His push is parallel to the ramp. What is the magnitude of the worker's push?
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a piano worker pushes a 5670 n piano up a 13 degree ramp at a constant velocity the ramp exerts a frictional force of
a postal worker pushes a 160 n bag of mail up a 31 degree ramp at a constant velocity the ramp exerts a frictional
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