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k0ka [10]
3 years ago
14

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 genera

te 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
Physics
2 answers:
mrs_skeptik [129]3 years ago
4 0
1200w that is the answer I don't really know
sattari [20]3 years ago
3 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
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