00:01
So we've got a diver on a 10 meter platform.
00:11
So we're going to say y -tubeau is 10 meters.
00:19
We need to figure out the amount of time it takes the diver to reach the ground.
00:26
But i'm pretty sure this diver would be jumping upward first.
00:31
But i think we've got to ignore that because we do need to know time.
00:49
So, he's going to jump up like this and then down.
00:57
Let's just assume jumping horizontally, which i think is a really bad assumption.
01:12
The only reason why it's decent is because it's 10 meters.
01:16
So, why, as a function of time, is going to be y0.
01:29
And by the way, in the end, i'm trying to figure out where y equals 0.
01:36
Y equals y0 plus vy0, which i'm assuming to be 0, minus 1 1ā2gt squared.
01:53
So, t is going to be the square root of 20g.
02:07
If we just say that g is 10, then that's just the square root of 200.
02:18
Am i right here? i'm not sure i'm doing this right.
02:22
I must be having a brain freeze.
02:29
So i have to multiply by two, and then i have to divide by g.
02:42
So that would be 20 over g.
02:50
I was having a brain freeze...