word problem: Tara Trucker is driving at 27m/s through a fog

[Atsuke]

I need a starting equation to start off beginning to do this word problem:

Tara Trucker is driving at 27m/s through a fog that limits her visibility to 30m. She suddenly sees a car in front of her traveling in the same direction at 10 m/s. If she fails to apply the brakes, how much time does Tara have between seeing the car and crashing into it?

Thanks for you help

 

[stapel]

How far apart are the cars at the start?

What is the relative speed between them? (In other words, at what rate is the distance between the cars closing?)

At that relative speed, how long does it take to cover that distance apart?

Eliz.

 

[Atsuke]

Edit: Thanks! I Get it now! XD. The word problem made it too confusing and I hate word problems. I always need someone to define the word problem in order for me to get it .___.

 

[Atsuke]

Oh wait, can you confirm this answer?

v = d/t -- Solve for T
t = d/v -- And you get that
t = 30/17 -- Plug in the #s (I got 17 because 27-10=17, 27 is Taras speed while 10 is the other car's speed)
t = 1.764706 seconds -- Answer

 

[Denis]

Oh wait, can you confirm this answer?
v = d/t -- Solve for T
t = d/v -- And you get that
t = 30/17 -- Plug in the #s (I got 17 because 27-10=17, 27 is Taras speed while 10 is the other car's speed)
t = 1.764706 seconds -- Answer

No.
The 30m is being travelled at a combined speed 27+10 = 37 m/s;
so it takes less than a second: 30/37