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1. |
A 200 kg wagon climbs up a hill of slope 30-degrees in 1 minute at a speed of 10 m/s. How much power is delivered by the engine? (Assume g = 10m/s2) |
A. | 10 kW |
B. | 20 kW |
C. | 30 kW |
D. | 40 kW |
Answer» C. 30 kW | |