Suppose a skydiver jumps out of a plane at 15,000 meters above the ground. It takes...
Suppose a skydiver jumps out of a plane at 15,000 meters above the ground. It takes him 2.0 seconds to pull the cord to deploy the parachute and another 2.0 seconds for the parachute to be fully deployed. Additionally, in order to land safely on the ground, his parachute must be fully deployed 10.0 seconds before he hits the ground. With this information and assuming there is no additional air resistance or changes in atmospheric density, what is the maximum time into his fall that he can wait to pull the cord in order to make it safely to the ground?
Use vertical kinematic equations
Homework Answers
First find the time the skydiver have while jumping from 15000 m.
Initial vertical velocity is zero
Use formula 
-----------
The skydiver requires (2s+2s+10s) 14s to deploy the chute and land safely
Time left = t - 14s
ANSWER: 
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