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5 January, 20:08

A 60-kg man uses an electric chair to carry him up the stairs. if the chair has a mass of 200 kg, what power must a motor generate to transport the man and chair 5 m vertically in 10 seconds, assuming a constant velocity and ignoring all forces except gravity? 900 w 1300 w 400 w 1200 w

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  1. 5 January, 21:55
    0
    Mass:m = 60+200 = 260 kg

    Engine work:A = m*g*h = 260*10*5 = 13 000 J

    Engine power:N = A / t = 13 000 / 10 = 1 300 W
  2. 5 January, 23:01
    0
    1200w that is the answer I don't really know
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Home » Physics » A 60-kg man uses an electric chair to carry him up the stairs. if the chair has a mass of 200 kg, what power must a motor generate to transport the man and chair 5 m vertically in 10 seconds, assuming a constant velocity and ignoring all forces
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