Question

An airplane takes off at 9:00 A.M. and flies at 300. km/h until 1:00 P.M. At 1:00 P.M. its speed is increased to 400. km/h, and it maintains this speed until it lands at 3:30 P.M. What is the airplane’s average speed for the entire flight?
4 hr * 300km/hr = 1200km
2.5 hr * 400km/hr = 1000km

2200km/6.5hr = 338.46km/hr

Related Questions

When an airplane flies with a given wind, it can travel 3000 km in 5hrs. When the same airplane flie... A commuter airplane starts from an airport and takes the route shown in the figure below. The plane... You're in an airplane that flies horizontally with speed 860 km/h (240 m/s ) when an engine falls of... An airplane leaves an airport,flies due north for 2 hours at 500 km/h. It then flies on a bearing of...