t₁ = t2 = i i sec, |v|= Mi sec, |v|= i ft/sec ft/sec

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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A projectile is fired vertically from point A with an initial speed of 240 ft/sec. Relative to an observer located at B, at what times (find
two times t₁ < t₂) will the line of sight to the projectile make an angle of 38° with the horizontal? Compute the magnitude of the speed
of the projectile at each time, and ignore the effect of aerodynamic drag on the projectile.
Answers:
=
B
t2 =
i
i
38°
345'
240 ft/sec
A
sec, |v|= i
sec, |v|= i
ft/sec
ft/sec
Transcribed Image Text:A projectile is fired vertically from point A with an initial speed of 240 ft/sec. Relative to an observer located at B, at what times (find two times t₁ < t₂) will the line of sight to the projectile make an angle of 38° with the horizontal? Compute the magnitude of the speed of the projectile at each time, and ignore the effect of aerodynamic drag on the projectile. Answers: = B t2 = i i 38° 345' 240 ft/sec A sec, |v|= i sec, |v|= i ft/sec ft/sec
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