physics
A 13.9 kg block is dragged over a rough, horizontal surface by a 70.7 N force acting at 19.8 degrees above the horizontal. The block is displaced 4.55 m, and the coefficient of kinetic friction is 0.298.
How much energy is lost due to friction?
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Answers
The energy lost due to friction can be calculated using the formula E = F x d x cos (theta), where F is the applied force, d is the displacement, and theta is the angle of the force relative to the displacement. In this case, the energy lost due to friction is equal to 841.5 Joules. This energy is lost because of the resistance or drag created from the coefficient of kinetic friction between the block and the surface when it is being dragged.
