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A plane is moving due north, directly towards its destination. Its airspeed is 200 mph. A constant breeze is blowing from west to east at 40 mph. How long will it take for the plane to travel 200 miles north?Select one:a.less than one hourb.more information is neededc.more than one hourd.one hour

Question

A plane is moving due north, directly towards its destination. Its airspeed is 200 mph. A constant breeze is blowing from west to east at 40 mph. How long will it take for the plane to travel 200 miles north?Select one:a.less than one hourb.more information is neededc.more than one hourd.one hour

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Solution

The answer is d. one hour.

Here's why:

The plane's airspeed (its speed in still air) is 200 mph. This means that if there was no wind, the plane would travel 200 miles in one hour.

The wind is blowing from west to east, which is perpendicular to the plane's direction of travel (north). This means that the wind does not affect the plane's speed towards its destination. The plane is still moving north at 200 mph, so it will take one hour to travel 200 miles north.

This problem has been solved

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