 3, 2 minutes. 1 is to 1 or 1 is to? How is that 1 is to? People have this to you. Okay, should I do? Just question now. Okay, one minute. What actually? So, if it is 1 is minus u into t minus half g t square. Fine? So, from this, if it is not 1 is to 1 or 1 is ratio of the velocity is 2 g h. So, velocity. So, v square equal to 2 g into h. So, v is root 2 g h. So, final velocity finally will be under root of 1 is to 1. Yes or no? Yes sir. A vector is this square plus that is square under root. Okay, so it is 1 is to 1. Now, quite a bit of a question. The question is this comprehension type. As you have written into gravity 2 g. How well of that? Right. So, find t 1 and t 2 and add them up. So, we write 2 g and then they are half. There is a path becomes like this. Had it been complete 2 g, it would have been like same. May be wrong. May be wrong. So, don't try to do like that. Try to do it in some other way. It may be correct, but there is a chance that it is wrong. You cross this edge over. So, p u pi root 2 g. This is the time from 2 to 3. Okay, otherwise you have to think of any formula. So, based on this situation only question number 15. The range is what? Find out the one. No, option that we have. No, option name. It is very easy. They are common on CDT. Not a question. They are not very easy. What do you do? u y s between. Understood. You cross it up. v y square plus 2 g into h max. h max is this. Ha, 2 into 2 g. Ha. 2 into 2 g. Okay. The answer is 16 c b b.