The aircraft flies at a speed of 180 km / h and the helicopter at a speed of 90 km / h. The weight of the aircraft is 3000 kg.
| April 27, 2021 | education
The aircraft flies at a speed of 180 km / h and the helicopter at a speed of 90 km / h. The weight of the aircraft is 3000 kg. The ratio of the impulse of the aircraft to the impulse of the helicopter is 1.5. What is the mass of the helicopter?
To calculate the mass of the helicopter, we will use the proportion: k = Pc / Pw = mc * Vc / (mw * Vw), whence mw = mc * Vc / (Vw * k).
Values of variables: mс – aircraft weight (mс = 3000 kg); Vс – aircraft speed (Vс = 180 km / h); Vv (helicopter speed) = 90 km / h; k (pulse ratio) = 1.5.
Let’s make a calculation: mw = mc * Vc / (Vw * k) = 3000 * 180 / (90 * 1.5) = 4000 kg.
Answer: The mass of the helicopter is 4000 kg.
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