Trigonometry Word Problem - PLEASE HELP ME FINISH!

Question

anonymous · Answer

http://i.gyazo.com/386534c6eb213f71e7f633bd9c6a7cf7.png

anonymous · Answer

Someone please! ;_;

mrnood · Answer

OK 
What is the max and min value of cos (x) ?

mrnood · Answer

are you waiting for the answer? or some help?

anonymous · Answer

I kind of want the answer, considering how close I am to being done. ;_; 

I already tried and I'm in a rush to be finished with the course. I would prefer if I got the answer then with an explanation on how.

mrnood · Answer

If you're in a real rush - better solve it yourself, you never know how long you might wait here.

If you want some help - then answer the question I asked above

anonymous · Answer

Would it be possible for you to just give me the answer with an explanation how? ;_;

mrnood · Answer

I don't really have any interest in 'doing' the answer. I kinda hoped that this forum might attract people motivated and interested in Physics/maths etc. rather than a quick tick in the box to pass your test.

anonymous · Answer

so at a t=0 it will give you her height before the ride begins