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Assuming 100% efficiency P=IV Power = 120 x 20 = 2400WPower = Energy/ timeIn 1 second Energy used in lifting= 2400J Energy = Force x displacement Displacement in 1 second = 10m Force= mass x gravitational field strength = mg Taking g = 10 N/kg Energy = mgh where h is height (or displacement) 2400= m 10(10) 2400 = 100m m = 24 kg

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16y ago
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1w ago

To calculate the maximum mass that can be lifted at 10 m/s, we need to convert the electrical power provided by the motor into mechanical power. Using the formula Power = voltage * current, we find that the motor produces 120 volts * 20 amperes = 2400 watts. Assuming perfect efficiency, this power could lift a mass of 2400/10 = 240 kg at 10 m/s.

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Q: How great a mass could be lifted at 10 meters per second by a motor with 120 volts current and puts out 20 amperes?
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