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Q. Boxes are transported from one location to another in the ware-house by means of a conveyor belt that moves with a constant speed of 0.50m/s. At a certain location the conveyor belt moves for 2.00 m up an incline that makes an angle of 10° with the horizontal, after that for 2.0 m horizontally, and finally for 2.0 m down an incline that makes an angle of 10° with the horizontal. Assume that the 2.00 kg box rides on the belt without slipping. At what rate is the force of the conveyor belt doing work on the box as box moves (a) up the 10° inclines, (b) horizontally, and (c) down the 10° incline?

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