An airplane is cruising at 350 km/h at an altitude of 4000 m. If the plane passes directly over an observer on the ground, how fast is the distance from the plane to the observer changing when it is 5000 m away from the observer? O None of the choices O 54.66 km/h O 210 km/h O 0.21 km/h O 273.3 km/h

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Differential Equations

Have you ever observed the movement of the satellites and rockets or how the planets go around the sun in their orbits? How will you determine their motion? Definitely they follow some scientific laws and these kinds of problems are framed as differential equations.