A skydiver weighing 176 lbf (including equipment) falls ve 12 s of free fall. Assume that the force of air resistance, w closed and 13 |v| when the parachute is open, where the Use g = 32 ft/s². Round your answers to two decimal pla

Algebra: Structure And Method, Book 1
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Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
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Section9.5: Multiplication With The Addition-or-subtraction Method
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A skydiver weighing 176 lbf (including equipment) falls vertically downward from an altitude of 3000 ft and opens the parachute after
12 s of free fall. Assume that the force of air resistance, which is directed opposite to the velocity, is 0.77 | v | when the parachute is
closed and 13 |v| when the parachute is open, where the velocity v is measured in ft/s.
Use g = 32 ft/s². Round your answers to two decimal places.
(a) Find the speed of the skydiver when the parachute opens.
v(12) =
ft/s
(b) Find the distance fallen before the parachute opens.
x(12) = i
ft
(c) What is the limiting velocity v₁ after the parachute opens?
VL =
i
ft/s
Transcribed Image Text:A skydiver weighing 176 lbf (including equipment) falls vertically downward from an altitude of 3000 ft and opens the parachute after 12 s of free fall. Assume that the force of air resistance, which is directed opposite to the velocity, is 0.77 | v | when the parachute is closed and 13 |v| when the parachute is open, where the velocity v is measured in ft/s. Use g = 32 ft/s². Round your answers to two decimal places. (a) Find the speed of the skydiver when the parachute opens. v(12) = ft/s (b) Find the distance fallen before the parachute opens. x(12) = i ft (c) What is the limiting velocity v₁ after the parachute opens? VL = i ft/s
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