00:01
This question, we need to show that a freely falling rock drop citizens of 20 m and falls from rest for two seconds.
00:06
Uh so it falls from here.
00:09
This is a rest.
00:10
So the initial velocity is zero, it falls for a distance which we need to find and the time for this complete activity is two seconds.
00:23
And the distance which we need to find one thing which is not given, but it's hidden inside.
00:28
The question is that it is freely falling.
00:31
So if it is free to falling, it means that it is falling under the acceleration due to gravity means that the acceleration has given us 9.8.
00:40
Meet up a 2nd square.
00:41
They're going to use the equation of motion that we square is equal to be not square plus to a.
00:50
S.
00:50
So we use the final speed which is actually not.
00:54
There's one we require because we don't need the final speed.
00:57
We need to find a displacement...