(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A sand mover at a quarry lifts 2,000kg of sand per minute a vertical distance of 12 meters. The sand is initially at rest and is discharged at the top of a sand mover with speed 5m/s into a loading chute. At what minimum rate must power be supplied to this machine?

A) 524w B) 1.13kw C) 4.34kw D) 3.92kw E) 6.65kw

3. The attempt at a solution

[tex]W_{MS} = \frac{1}{2}mv_{f}^2 - \frac{1}{2}mv_{0}^2[/tex]

[tex]W_{MS} = \frac{1}{2}(2000)(5)^2 - \frac{1}{2}(2000)(0)_{0}^2[/tex]

[tex]W_{MS} = 25000J[/tex]

There wasn't a picture, and I get kinda lost after this point.

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# Homework Help: Minimum Power for Lifting Sand

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