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physics

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Jessie exerted a force of 400N to move a box across the floor to a distance of5m in 4sec. What is his power is kilowatts? Megawatts? Horsepower?

  • physics - ,

    power = work energy/time
    = 400 * 5 / 4 = 500 watts
    = .5 Kw
    = .5*10^-3 = 5 * 10^-4 Megawatts

    .5 kw * 1.34 hp/kw = .67 hp

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