Recent content by Alipepsi

Derive for time! D=Vit+1/2at^2 THANKS for you help

If I was to use quadratic, then how would I get my A, B, and C values from solving that equation?

did I derive for t correctly there?

So you have to derive for t right? This is what I got: t= sq root s-ut/0.5a This is correct? Really need to know this asap

I see, can you help me with how to know what equations to use for questions. Like I was confused for what equation to use for the second problem. Do I look for all the values I'am given with the values in all the equatiosn then pick the one? Ik my quesitons is silly :P

Vf^2=vi^2+2a(d) v=sq root 30^2-2(9.81)(5) v= 28.3m THEN Solve for time using the equation: t=(v-vf)/a answer is 0.17seconds ;D THANKS FOR YA HELP MAN! :D

a=vf-vi/t Then just derive it :P

Tiny, I'am confused =( I've looked over the equations but can not figure out what equation to use. PLEASE HELP ME I have a test after march break =S

Thanks

For the questions below, which kinematic equations would I use? I have already tried these on my own but can not find a way to match the answers with the answer sheet, the answers on the answer key are RIGHT, as they are approved by my teacher. Okey so the questions are 1) A baseball is...

Okey, thanks

anyone?

Actually spend hours on trying to solve this :S Help will be greatly appreciated!

Homework Statement Hey there, I need some help with uncertainties and how to find the speed of a moving object. I have tried to solve the problem several times but my answer seems to be wrong. Formula for speed : v=d/t My uncertainties: 0.5cm (distance) and 0.5s for time. The uncertainties...