How long does it take the plane to fly over the river

Reference no: EM13319408

An airplane, capable of flying at a speed of 500 miles/hr in still air (i.e., the airplane can fly with a speed of 500 miles/he relative to the air), starts to fly over a river which is 5 miles wide. However, the wind has speed of 10 miles/hr at 30 degree angle. How long does it take the plane to fly over the river?

Reference no: EM13319408

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