Recent content by simpleee

s(-9.8) = 0 + 17.5 - 4.9(3.6) s(-9.8) = 0 + 17.5 - 17.64 s(-9.8) = 17.5 - 17.64 ?

I'm not getting it. whats s stand for? when I plug it in it is: s(-9.8) = 0 + 17.5 - 4.9(3.6)

s(-9.8) = xi + 17.5 - 4.9t [I think]

what does xi equal?

A softball is thrown straight up at 17.5m/s and caught at 3.60s later.How high does the ball rise? What equation would I use for this? I know that: Vi = 17.5m/s t = 3.6s and gravity is -9.8 Can anyone help me get started on this problem?

Good, good. All the better! ^_^ 2.1m/s?

Why did it turn into 10.5/4.9? Is there any rules on how many times we can ask for help? o.o

Do I get the t by itself now? I think I might have posted this on the wrong section. .-.

0 = 10.5 t + 1/2 9.8 t2 0 = 10.5 - 4.9 t2

but i only have 10.5s and 9.8 for gravity. So how would i know the rest?

Oh and thank you for the welcome. =]

truthfully, I am not quiet sure. I need help understanding which one to use and why exactly I should use it. s = ut + 1/2 at squared

Can someone one show me a step by step example of how to work out a problem where a ball is thrown up and it is a catched after let's say 10.5s, so how would I find out the initial velocity?