- #1
Richard09876
- 6
- 0
Homework Statement
Hi guys, I am working through a very long problem and I am stuck at this part.
So I have a 70kg human being launched at a 90 degree angle at 15mph. I need to figure out how high in the air he will get before velocity reaches zero again and he begins to fall.
Homework Equations
Vf = Vi + at
Rearranged to: a = (Vf-Vi)/ t
A- time
Vi- initial velocity
Vf- final velocity
t- -9.8m/s^2
The Attempt at a Solution
After I rearranged the problem I got a = (0-2.5)/-9.8
a = .255
Now I used D= Vi*t (1/2) a t ^2
6.25 (.255) = 1.59
1.59 + 1/2 (-9.81)(.255)= 1.27 mIs this correct??[/B]