# math

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Sue is in an airplane which travels at a constant 300 kilometers per hour. The angle of climb of the airplane is 30
∘. How long (in seconds) would it take from takeoff,
before the airplane reaches 3000 meters, when Sue can access Wifi and work on the rest of the weekly problems?

• math -

the distance flown,

d = 3000/sin30° = 6000m

That's 6km, so it will take 6/300 = 1/50 hr = 72 seconds

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