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1. |
An elevator carrying, a maximum load of 1800 kg (elevator + passengers) is moving up with a constant speed of 2 ms-1.. The frictional force opposing the motion is 4000 N. Determine the minimum power delivered by the motor to the elevator. (Take g = 10 m/s2) |
A. | 59 hp |
B. | 38 hp |
C. | 44 hp |
D. | 155 hp |
Answer» B. 38 hp | |