------------------
"If we go any faster, she'll blow apart for sure!"
------------------
James Draeger
-Captain Sarcasm
420 - 165 = 255 feet
Methinks it will be faster than 80.
------------------
Joshua Wilcox
"2003" will come in at less than 100 mph and less than the infamous 400' mark. Be happy with it.
------------------
"If we go any faster, she'll blow apart for sure!"
------------------
"If we go any faster, she'll blow apart for sure!"
-albert
------------------
Guess who's back....back again ;)
KE = PE
1/2mv^2=mgh
m's cancel, h= 420' = 128.016m, g = 9.8m/s^2
(1/2)v^2 = (9.8)(128.016)
v = 50.091 m/s = 112.05 mph
So, in order to even get up to 420 feet, from the ground, you'd have to be going at least 112 mph. Hope this helps!
--James
*** This post was edited by jdoty 10/13/2002 8:13:45 PM ***
------------------
"If we go any faster, she'll blow apart for sure!"
*** This post was edited by MrScott 10/13/2002 8:28:26 PM ***
v^2 = Vo^2 + 2a(Yo-Y)
where v is final velocity, Vo is initial velocity , a is acceleration, Yo is initial height, and Y is final height. To make things easy i figured out what would happen if an object had a free-fall from a height of 420ft (128m) to 0ft, with a velocity of 0m/s at the top.
Therefore:
v^2 = 0^2 + 2(-9.8m/s)(0-128)
= (2)(9.8)(128)
v^2 = 2508 m/s
v = 50 m/s >>>180 kph >>>111.8 mph
i came out with about the same answer as jdoty did so that number is right.
Disclaimer: i would just like to say that i am (by far) not an expert at physics so don't take what i say as fact.
You must be logged in to post