00:01
Now here, how we have two, we look at a rock or stone, right, and it's throwing from ground level and travels in a palatidic path.
00:10
So let's, let me join.
00:12
So it's really about stone to stones, right? so the first stone actually is thrown from ground levels, ground is here.
00:20
So this is ground.
00:22
And it's thrown like this.
00:24
Okay, going up and it travels by palatbotic path going down to here, right? the maximum height reached is, let's say this is h, right? and actually is equal to the horizontal range.
00:40
So this horizontal range, and it says these two are the same.
00:43
So you ask that what angle this stone was known? so what is the c -time? so h clearly is given by, look at the height, it's given by g -t -square -2, right? no, not g2, 2, minus 2, actually, minus 2, 2.
01:03
And plus the initial velocity, let me call it v0.
01:07
Let's call the initial velocity's v.
01:09
Speed v and times sine ceta, right, and times t.
01:13
And then it's also clear that the horizontal part, the arrow is given by actually v cosine ceta times t, right? and this has to be the same as h.
01:26
Now you make this to the same, and you can easily work out you can easily work out the time t in terms of the, right, you can easily work out the, sorry, there's something around here.
01:51
So it's not, at the time, you should not, i should not put actually t actually because this is the total travel time.
01:57
So, yeah, this head is actually right, but this one is not right...