Free Fall Problems (Urgent)
I'm working on a homework and I've found there's a problem I can't find a solution to: A boy throws rocks up to a height we will name "H". How far must he throw the rocks for them to be twice the time in the air.
At first, the problem seems easy, as it is obvious that if it takes a certain time to throw them to a certain distance, twice that time will make exactly twice that distance (If t*2=2t, and if H is directly related to t, then 2t=2H). After doing this I thought it might not be that simple, as I can't assume that the time is equivalent to the height if the problem does not say so expressely. So I thought I'd ask if it really is that simple, and if not, can you point me in the right direction? I've been cracking my brain for about 5 days and I can't find a solution.
Thanks a lot in advance
