- 40

- 0

**Ricky Bobby??**

**1. The problem statement, all variables and given/known data**

Ricky Bobby jumps into his 1003kg pick up and heads out at 69.2mi/h. It's night and he notices too late the warning sign that the bridge is out. He slams on the brakes and skids for 45.2(kinetic friction=0.78)before hitting the long massive coil spring that is rigidly mounted onto the barricade. In addition to his skidding tires, the spring brings him to a stop. The spring constant is 3.57 x 10^4 N/m. how far does he travel after making contact with spring???

**2. Relevant equations**

1/2mv^2+1/2Kx^2=1/2mv^2+1/2kx^2 ?????????????????// im not sure if this is the right equation i dont think it is ive looked everywhere in my book to find a relevent equation i was wondering if anyone can point me towards the right equation please

**3. The attempt at a solution**

refer to (b)2.