Calculate the minimum change in velocity (delta V or ?V) required for the Space

Question

Calculate the minimum change in velocity (delta V or ?V) required for the Space Shuttle to decrease its altitude to 60 miles if it’s orbiting with an apogee of 236 miles and a perigee of 205 miles above the surface of Earth.

Use the rule of thumb that below an altitude of 500 miles, for every 2 feet per second (ft/s) change in the orbiting space craft’s velocity its altitude will change by 1 mile.

Make sure to label your answer in your assignment as “Math Answer” and show your work. Put your answer in units of feet per second.


CORRECT UNITS PLEASE! And a little explanation.

Explanation / Answer

change of altitude: 205-60=145

rule of thumb: deletV=145mile*2/sec.mile

290ft/sec

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