i need major help
an physist in my life right now would be great
PLEASE
see if you can answer this question-
i will be dropping an egg on my teachers head while on top of a tower thats 8.52 meters
my teacher will be on the bottom and walking towards the tower from 4 meters away
my teachers steps are 57.48 cm long and shell walk at a rate of 100 steps per minute
my teacher is 1.62 meters tall
ive already calculated that its going to take my teacher 4.175 seconds to reach the tower from her 4 meter away starting point
i need to find out at what time i should drop the egg so that it will land on my teachers head right when she reaches the end of the 4 meter point
PLEASE help
me
and if possible
tell me how u got the answer
2007-09-26 18:13:03 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Physics
You need the egg to fall 8.52-1.62 = 6.90 m.
s = ut + 1/2 at^2
Dropping the egg => initial velocity u = 0
so 6.90 = 1/2 (9.81) t^2
=> t = √(6.90 (2) / 9.81) = 1.19 sec.
So you need to drop the egg 1.19 sec before your teacher arrives under the tower, or 4.175 - 1.19 = 2.99 sec after she starts walking.
2007-09-26 18:20:58 · answer #1 · answered by Scarlet Manuka 7 · 0⤊ 0⤋
aight here wat u gotta do k? multiply the acceleration of gravity by the distanc of tower ther u go that how long it takes 2 reach ground then subtract it by the time it takes her to get there k gg
2007-09-27 01:18:06 · answer #2 · answered by rofler 1 · 0⤊ 0⤋