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Question: a skydiver weighing 210 lb including equipment falls vertically downward...

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A skydiver, weighing 210 lb (including equipment) falls vertically downward from an altitude of 4000 ft and opens the parachute after 10 s of free fall. Assume that the force of air re which is directed opposite to the velocity, is of magnitude 0.75]ν when the parachute is cese d and is of magnitude 14 v when tne parachute is open, where the veOCity s measured in t/s. (A computer algebra system is recommended. Use g-32ft/s for the acceleration due to gravity. Round your answers to two decimal places) (a) Find the speed of the skydiver when the parachute opens 190 71 b) Find the distance fallen before the parachute opens (c) What is the limiting velocity vi after the parachute opens? 15 (d) Determine how long the sky diver is in the air after the parachute opens 131.31
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