A projectile is fired vertically from point A with an initial speed of 215 ft/sec. Relative to an observer located at B, at what times (find two times t₁

College Physics
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ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
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Chapter1: Units, Trigonometry. And Vectors
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A projectile is fired vertically from point A with an initial speed of 215 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 32° 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:
t₁ =
i
t₂ = i
370
575'
215 ft/sec
sec, |v|=
sec, |v|=
A
i
ft/sec
ft/sec
Transcribed Image Text:A projectile is fired vertically from point A with an initial speed of 215 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 32° 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: t₁ = i t₂ = i 370 575' 215 ft/sec sec, |v|= sec, |v|= A i ft/sec ft/sec
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