A skydiver jumps from an airplane, the resistance he encountered is proportional to its velocity and his limiting velocity is equal to 10 fps. After 20 minutes, he opens his parachute, at that moment the resistance increases thrice to it original velocity. If he landed after 35 minutes, what is the altitude of the plane the moment the skydiver jumps from it? Assume its second limiting velocity is 4fps.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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A skydiver jumps from an airplane, the resistance he encountered is proportional to its velocity and his limiting velocity is equal to 10 fps. After 20 minutes, he opens his parachute, at that moment the resistance increases thrice to it original velocity. If he landed after 35 minutes, what is the altitude of the plane the moment the skydiver jumps from it? Assume its second limiting velocity is 4fps.

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