This problem involves work done by constant forces, including friction. A 40 kg box is pushed 5.0 metres along a rough horizontal floor with a constant applied force of 130 N. The co-efficient of kinetic friction between box and floor is 0.30. What is the total work done on the box.

Work on a sliding box: Work from contant forces (inc. friction) (PhysCasts)

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Work on a sliding box: Work from contant forces (inc. friction) (PhysCasts)

Work on a sliding box: Work from contant forces (inc. friction) (PhysCasts)