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tb27kyvc
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hello


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Two ramps, one steeper than the other, are available to move a heavy crate from the ground onto the bed of a truck. In the absence of friction, it takes more force to push the crate up the steeper ramp. Does this mean it also takes more work to raise the crate onto the bed of the truck along the steeper ramp? Taking friction into account, which ramp requires less work for pushing the crate on the truck?
 

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  • Posted on Dec 23, 2009 at 8:20:00PM
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mikeiowa89
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Preview: ... n the truck?  The steeper ramp, as the frictional force will be less. F=cosO*N*u; greater angles means less frictional force What is the angle of inclination that minimizes the work, and how is it ...
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  • Posted on Dec 23, 2009 at 8:22:31PM
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Preview: ... n into account The steeper ramp, as the frictional for ...
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