Julie pulls her ripcord at 3000 ft. It takes 5 sec for her parachute to open completely and for her to slow down, during which time she falls another 400 ft. After her canopy is fully open, her speed is reduced to 16 ft/sec. Find the total time Julie spends in the air, from the time she leaves the airplane until the time her feet touch the ground. On Julie’s second jump of the day, she decides she wants to fall a little faster and orients herself in the “head down” position. Her terminal velocity in this position is 220 ft/sec. Answer these questions based on this velocity:
Julie pulls her ripcord at 3000 ft. It takes 5 sec for her parachute to open completely and for her to slow down, during which time she falls another 400 ft. After her canopy is fully open, her speed is reduced to 16 ft/sec. Find the total time Julie spends in the air, from the time she leaves the airplane until the time her feet touch the ground. On Julie’s second jump of the day, she decides she wants to fall a little faster and orients herself in the “head down” position. Her terminal velocity in this position is 220 ft/sec. Answer these questions based on this velocity:
Julie pulls her ripcord at 3000 ft. It takes 5 sec for her parachute to open completely and for her to slow down, during which time she falls another 400 ft. After her canopy is fully open, her speed is reduced to 16 ft/sec. Find the total time Julie spends in the air, from the time she leaves the airplane until the time her feet touch the ground.
On Julie’s second jump of the day, she decides she wants to fall a little faster and orients herself in the “head down” position. Her terminal velocity in this position is 220 ft/sec. Answer these questions based on this velocity:
Lamont walks the 15 meters from the front door of his house to his car at a constant rate of speed. Having forgotten to lock the front door, Lamont runs the 15 meters back to the front door along the same path. His speed running is 2 m/sec faster than his speed walking. If the total time to walk to the car and run back to the door was 8 seconds, what was Lamont’s walking speed?
Team Alpha was on their night patrol in Mystical Forest
when they suddenly noticed that a flare was launched
from the ground at 20 m/sec. The said team was
immediately on alert upon knowing that there were people
who needed to be rescued. To be able to identify the
location of the launching site of the flare, they have to find
first the height of the flare after 5 seconds. (use a =
9.8m/sec2)
Zack went for a run. he ran at a speed of 2 m/s for 20 minutes. How far did Zack go?
Calculus for Business, Economics, Life Sciences, and Social Sciences (14th Edition)
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