When and where will the collision occur in a one lane tunnel?

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SUMMARY

Sue, traveling at 33 m/s, enters a one-lane tunnel and observes a van 175 m ahead moving at 5.40 m/s. After applying brakes with an acceleration of -2.00 m/s², the collision time and distance must be calculated. The problem requires the application of kinematic equations to determine when and where the collision occurs, emphasizing the importance of showing work for assistance in physics forums.

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Finding a collision time...

Homework Statement


Sue, driving at 33 m/s enter a one lane tunnel. She then observes a slow moving van 175 m ahead traveling with velocity 5.40 m/s. Sue applies here brakes but can accelerate at only -2.00m/s^2.


Homework Equations


Determine how far into the tunnel and at what time the collision occurs.

The Attempt at a Solution

 
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Hello,

FYI, it's forum policy that you show the relevant equations and, more importantly, show your attempt at solving the problem, before you can get help with it.

See item #1 here:
https://www.physicsforums.com/showthread.php?t=94379
 

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