- #1
brentwoodbc
- 62
- 0
I did
f=ma
(30+20)/2=2a
a=12.5m/s^2
vf^2=vi^2+2ad
vf^2=0+2•12.5•10
vf= 16 m/s
I remember doing a question like this on a test a while ago and I think the teacher said you don't know that the initial velocity is 0 or something like that?
anyways my way I don't get the right answer, the correct answer is 7.3m/s
How do I do this?