An airplane of mass 28849 kg flies level to the ground at an altitude of 20 km with a constant speed of 161 m/s relative to the Earth. What is the magnitude of the airplane’s angular momentum relative to a ground

Explanation:

The angular momentum can be calculated as , where all (except m) are vectors. Since the plane flies horizontally, we will be left with , since the height h would be the perpendicular component to the velocity of any vector r from the ground to the plane. For our values:

that tool is called an altimeter which measures your altitude which can be used to tell which atmosphere you are currently in, including the stratosphere.

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c. magnitude and direction