Can You Avoid Hitting the Tractor on a Country Road?

[bmiller13]

Homework Statement

We are doing homework on webassign, and the first set was easy, but I am completely lost this time.


You are driving your car along a country road at a speed of 26.5 m/s. As you come over the crest of a hill, you notice a farm tractor 25 m ahead of you on the road, moving in the same direction as you at a speed of 12.0 m/s. You immediately slam on your brakes and slow down with a constant acceleration of magnitude 10 m/s2.
(a) Will you hit the tractor before you stop?
yes
no



(b) How far will you travel before you stop or collide with the tractor?
m

(c) If you stop, how far is the tractor in front of you when you finally stop? (If you instead collide, enter 0 below.)
m

Homework Equations

v=Vo+at
X=1/2(Vo+V)t
x=Vot+ 1/2 at (squared)
v(squared)= Vo(Squared) + 2ax


I have a couple problems other than this i don't understand.

The Attempt at a Solution

i know it won't hit the tractor, but I am lost from there.


Ive tried using all the equations my teacher gave us, but the website still says its the wrong answer, i don't know what I am doing wrong.

 

[Borek]

Show what and how you did.