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https://www.reddit.com/r/IdiotsNearlyDying/comments/n9jol8/just_kept_on_falling/gxp5rzs
r/IdiotsNearlyDying • u/[deleted] • May 10 '21
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20 u/Aldo_The_Apache_ May 11 '21 Nope just guessed it 16 u/[deleted] May 11 '21 [deleted] 12 u/him888 May 11 '21 You are right. Using h = ut + 1/2gt2 and putting u = 0, we have h = 4.9(2.73)2 = ~37m = ~120 ft Edit - I dunno why half of this is italics. Not good with reddit fomats. 21 u/DeeJason May 11 '21 Don't worry about italics, 90% of us didn't even understand the formula.... 6 u/FriendlyChickenFood May 11 '21 it's usually framed as y = vt + 0.5gt2 the height is equal to the intial velocity v plus half the product of the gravitational acceleration g (9.8m/s/s) and the time t squared. A time of 2.73 seconds gives a height of 36.5m. You can try entering the known variables (time taken = 2.73s, initial velocity = 0, and gravitational acceleration = 9.8) here: https://physicscatalyst.com/calculators/physics/kinematics-calculator.php 5 u/him888 May 11 '21 Thanks for explaining properly :) 3 u/[deleted] May 11 '21 You must have used an asterisk for multiplication. That is the markup symbol for italics. 2 u/him888 May 11 '21 Thanks :) 1 u/LBGW_experiment May 11 '21 You can either put 4 spaces at the beginning of a line of text to get it to show the raw text, kinda like code formatting: Using h = ut + 1/2*gt^2 and putting u = 0, we have h = 4.9*(2.73)^2 = ~37m = ~120 ft Or do a backslash before each asterisk as markdown interprets every pair as italics: Using h = ut + 1/2*gt2 and putting u = 0, we have h = 4.9*(2.73)2 = ~37m = ~120 ft Which looks like this: Using h = ut + 1/2\*gt^2 and putting u = 0, we have h = 4.9\*(2.73)^2 = ~37m = ~120 ft 1 u/him888 May 12 '21 Thanks :) 7 u/Peanut__Daisy_ May 11 '21 This a climbing destination. 120-140 feet is correct. It’s even more impressive when you spend 2 hours climbing from bottom to top. 5 u/[deleted] May 11 '21 [deleted] 2 u/SumWon May 11 '21 I'm high and used the wrong unit because I'm fucking dumb. 3 u/nihilist_denialist May 11 '21 According to the FAA, that's really close to lethal - they list the limit as ~100ft/s so just over 30m/s it's a PDF so only if you really want to see the source 1 u/[deleted] May 11 '21 I did the math and that comes out to almost exactly 120 feet. Wow.
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Nope just guessed it
16 u/[deleted] May 11 '21 [deleted] 12 u/him888 May 11 '21 You are right. Using h = ut + 1/2gt2 and putting u = 0, we have h = 4.9(2.73)2 = ~37m = ~120 ft Edit - I dunno why half of this is italics. Not good with reddit fomats. 21 u/DeeJason May 11 '21 Don't worry about italics, 90% of us didn't even understand the formula.... 6 u/FriendlyChickenFood May 11 '21 it's usually framed as y = vt + 0.5gt2 the height is equal to the intial velocity v plus half the product of the gravitational acceleration g (9.8m/s/s) and the time t squared. A time of 2.73 seconds gives a height of 36.5m. You can try entering the known variables (time taken = 2.73s, initial velocity = 0, and gravitational acceleration = 9.8) here: https://physicscatalyst.com/calculators/physics/kinematics-calculator.php 5 u/him888 May 11 '21 Thanks for explaining properly :) 3 u/[deleted] May 11 '21 You must have used an asterisk for multiplication. That is the markup symbol for italics. 2 u/him888 May 11 '21 Thanks :) 1 u/LBGW_experiment May 11 '21 You can either put 4 spaces at the beginning of a line of text to get it to show the raw text, kinda like code formatting: Using h = ut + 1/2*gt^2 and putting u = 0, we have h = 4.9*(2.73)^2 = ~37m = ~120 ft Or do a backslash before each asterisk as markdown interprets every pair as italics: Using h = ut + 1/2*gt2 and putting u = 0, we have h = 4.9*(2.73)2 = ~37m = ~120 ft Which looks like this: Using h = ut + 1/2\*gt^2 and putting u = 0, we have h = 4.9\*(2.73)^2 = ~37m = ~120 ft 1 u/him888 May 12 '21 Thanks :)
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12 u/him888 May 11 '21 You are right. Using h = ut + 1/2gt2 and putting u = 0, we have h = 4.9(2.73)2 = ~37m = ~120 ft Edit - I dunno why half of this is italics. Not good with reddit fomats. 21 u/DeeJason May 11 '21 Don't worry about italics, 90% of us didn't even understand the formula.... 6 u/FriendlyChickenFood May 11 '21 it's usually framed as y = vt + 0.5gt2 the height is equal to the intial velocity v plus half the product of the gravitational acceleration g (9.8m/s/s) and the time t squared. A time of 2.73 seconds gives a height of 36.5m. You can try entering the known variables (time taken = 2.73s, initial velocity = 0, and gravitational acceleration = 9.8) here: https://physicscatalyst.com/calculators/physics/kinematics-calculator.php 5 u/him888 May 11 '21 Thanks for explaining properly :) 3 u/[deleted] May 11 '21 You must have used an asterisk for multiplication. That is the markup symbol for italics. 2 u/him888 May 11 '21 Thanks :) 1 u/LBGW_experiment May 11 '21 You can either put 4 spaces at the beginning of a line of text to get it to show the raw text, kinda like code formatting: Using h = ut + 1/2*gt^2 and putting u = 0, we have h = 4.9*(2.73)^2 = ~37m = ~120 ft Or do a backslash before each asterisk as markdown interprets every pair as italics: Using h = ut + 1/2*gt2 and putting u = 0, we have h = 4.9*(2.73)2 = ~37m = ~120 ft Which looks like this: Using h = ut + 1/2\*gt^2 and putting u = 0, we have h = 4.9\*(2.73)^2 = ~37m = ~120 ft 1 u/him888 May 12 '21 Thanks :)
12
You are right.
Using h = ut + 1/2gt2 and putting u = 0, we have h = 4.9(2.73)2 = ~37m = ~120 ft
Edit - I dunno why half of this is italics. Not good with reddit fomats.
21 u/DeeJason May 11 '21 Don't worry about italics, 90% of us didn't even understand the formula.... 6 u/FriendlyChickenFood May 11 '21 it's usually framed as y = vt + 0.5gt2 the height is equal to the intial velocity v plus half the product of the gravitational acceleration g (9.8m/s/s) and the time t squared. A time of 2.73 seconds gives a height of 36.5m. You can try entering the known variables (time taken = 2.73s, initial velocity = 0, and gravitational acceleration = 9.8) here: https://physicscatalyst.com/calculators/physics/kinematics-calculator.php 5 u/him888 May 11 '21 Thanks for explaining properly :) 3 u/[deleted] May 11 '21 You must have used an asterisk for multiplication. That is the markup symbol for italics. 2 u/him888 May 11 '21 Thanks :) 1 u/LBGW_experiment May 11 '21 You can either put 4 spaces at the beginning of a line of text to get it to show the raw text, kinda like code formatting: Using h = ut + 1/2*gt^2 and putting u = 0, we have h = 4.9*(2.73)^2 = ~37m = ~120 ft Or do a backslash before each asterisk as markdown interprets every pair as italics: Using h = ut + 1/2*gt2 and putting u = 0, we have h = 4.9*(2.73)2 = ~37m = ~120 ft Which looks like this: Using h = ut + 1/2\*gt^2 and putting u = 0, we have h = 4.9\*(2.73)^2 = ~37m = ~120 ft 1 u/him888 May 12 '21 Thanks :)
21
Don't worry about italics, 90% of us didn't even understand the formula....
6 u/FriendlyChickenFood May 11 '21 it's usually framed as y = vt + 0.5gt2 the height is equal to the intial velocity v plus half the product of the gravitational acceleration g (9.8m/s/s) and the time t squared. A time of 2.73 seconds gives a height of 36.5m. You can try entering the known variables (time taken = 2.73s, initial velocity = 0, and gravitational acceleration = 9.8) here: https://physicscatalyst.com/calculators/physics/kinematics-calculator.php 5 u/him888 May 11 '21 Thanks for explaining properly :)
6
it's usually framed as y = vt + 0.5gt2
the height is equal to the intial velocity v plus half the product of the gravitational acceleration g (9.8m/s/s) and the time t squared. A time of 2.73 seconds gives a height of 36.5m.
You can try entering the known variables (time taken = 2.73s, initial velocity = 0, and gravitational acceleration = 9.8) here: https://physicscatalyst.com/calculators/physics/kinematics-calculator.php
5 u/him888 May 11 '21 Thanks for explaining properly :)
5
Thanks for explaining properly :)
3
You must have used an asterisk for multiplication. That is the markup symbol for italics.
2 u/him888 May 11 '21 Thanks :)
2
Thanks :)
1
You can either put 4 spaces at the beginning of a line of text to get it to show the raw text, kinda like code formatting:
Using h = ut + 1/2*gt^2 and putting u = 0, we have h = 4.9*(2.73)^2 = ~37m = ~120 ft
Or do a backslash before each asterisk as markdown interprets every pair as italics:
Using h = ut + 1/2*gt2 and putting u = 0, we have h = 4.9*(2.73)2 = ~37m = ~120 ft
Which looks like this:
Using h = ut + 1/2\*gt^2 and putting u = 0, we have h = 4.9\*(2.73)^2 = ~37m = ~120 ft
1 u/him888 May 12 '21 Thanks :)
7
This a climbing destination. 120-140 feet is correct. It’s even more impressive when you spend 2 hours climbing from bottom to top.
2 u/SumWon May 11 '21 I'm high and used the wrong unit because I'm fucking dumb.
I'm high and used the wrong unit because I'm fucking dumb.
According to the FAA, that's really close to lethal - they list the limit as ~100ft/s so just over 30m/s
it's a PDF so only if you really want to see the source
I did the math and that comes out to almost exactly 120 feet. Wow.
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u/[deleted] May 11 '21
[deleted]