Hey guys :) I'm just a guy who got into physics two days ago, been reading into it, watching videos and some history and I'm having a problem, a youtuber 'thenewboston' has a physics series and I am currently on his 4th video which he has called:

If you skip to 6:03 The equation is the problem I am having, I can not comprehend it no matter how many times I watch the video.

I already know the answer to the question is 313.6 Meters Although I do not know how to calculate it according to the formula and the only reason I know how to get the answer is because people have said in the video's comment section that the answer is 313.6 Meters.

Why are you multiplying everything by four? You put an 8 where the t is in the equation and go from there. That gives you 8 squared=64 times 9.8 = roughly 640. Then you take half of that gives you roughly 320, which is the 313.6.

The reason I was multiplying everything by four is to prove, as I said above that I do not know the formula but that is how I got the answer 313.6 ..... and so on with that.

"That gives you 8 squared=64 times 9.8 = roughly 640. Then you take half of that gives you roughly 320, which is the 313.6."

Thanks, I understand how to get it now but how does the 320 = 313.6 would you mind explaining that?

and if it isnt too much of a bother would you mind giving me a similar example and using your theory I will see what answer I get and hopefully it is correct