Asked by hana
                a person pushes a box across a horizontal surface at a constant speed of .5 meter per second. the box has a mass of 40 kg and the coefficient of sliding friction is .25. The power supplied to the boxx by the person is...
please Explain!!
            
        please Explain!!
Answers
                    Answered by
            GK
            
    Since the box is pulled at a constant speed, the force applied is equal to the force of friction.
F = F(friction) = µ*m*g
Power generated = P = Fv
    
F = F(friction) = µ*m*g
Power generated = P = Fv
                    Answered by
            hana
            
    is the answer 5K ?
    
                    Answered by
            GK
            
    Your answer should be in watts in the range of 20 to 90 watts. You should be familiar with the symbols I used and the appropriate units for each.
    
                    Answered by
            fawzoyh qhoam
            
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                    Answered by
            Shamanthak Reddy Mallu
            
    Hi
In this question we have to take friction as your force applied.
F = friction = µ*m*g = 0.25 * 40 * 10 = 100
V = 0.5 m/s
Power = F * V = 100 * 0.5 = 50 W
    
In this question we have to take friction as your force applied.
F = friction = µ*m*g = 0.25 * 40 * 10 = 100
V = 0.5 m/s
Power = F * V = 100 * 0.5 = 50 W
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