The stacker lifts a 7kN heap to a height of 7.5m by 10s. How much power does the engine of the machine develop?
| July 5, 2021 | education
Initial data: P (mass of the heap being lifted) = 7 kN (7 * 103 N); h (head lifting height) = 7.5 m; t (duration of the stacker motor) = 10 s.
The power developed by the stacker engine is determined by the formula: N = A / t = ΔEp / t = P * h / t.
Calculation: N = 7 * 10 ^ 3 * 7.5 / 10 = 5.25 * 10 ^ 3 W (5.25 kW).
Answer: When lifting the head, the stacker motor develops a power of 5.25 kW.
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