railway RRB Technician Grade 1 Mock Test 2024 Physics Work Power and Energy Power

An elevator weighing 500 kg is to be lifted up at a constant velocity of 0.25 m/s. What would be the minimum horsepower of the motor to be used? G = 9.8 m/s2 and there is no frictional loss.

1
1.0 hp
2
2.0 hp
3
1.64 hp
4
1.92 hp
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