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View Full Version : Finding a collision time....


steph35
Oct9-08, 08:40 PM
1. The problem statement, all variables and given/known data
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.


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

3. The attempt at a solution

Redbelly98
Oct10-08, 09:12 PM
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:
http://www.physicsforums.com/showthread.php?t=94379