Created
December 3, 2015 18:47
-
-
Save bfabry/b51bfc9035a853c3259f to your computer and use it in GitHub Desktop.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
fall distance = dx above bolt * 2 + excess rope | |
excess rope = dx you to bolt * 2 | |
fall distance = dx above bolt * 2 + dx you to bolt * 2 | |
dx above bolt = (distance between bolts - dx you to bolt) | |
dx you to bolt = (distance between bolts - dx above bolt) | |
— no reachy | |
dx you to bolt = 0 | |
fall distance = dx above bolt * 2 | |
fall distance = 2 * (distance between bolts - dx you to bolt) | |
fall distance = 2 * distance between bolts | |
— reachy | |
dx above bolt = 0 | |
fall distance = dx you to bolt * 2 | |
fall distance = 2 * (distance between bolts - dx above bolt) | |
fall distance = 2 * distance between bolts |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
note: the fall distance is the same but in the second case you're starting the fall closer to the ground. this has obvious consequences if the first bolt is 2m off the ground, and the distance between them is 2m.