I'm driving my car of mass \(1000~\mbox{kg}\) at \(100~\mbox{km/hr}\) when I accidentally hit the rear end of a truck of mass \(5000~\mbox{kg}\) traveling in the same direction at \(90~\mbox{km/hr}\). My car and the truck lock together and move as a single object. Let \(F_1 \hat{x}\) be the force the truck exerts on my car and let \(F_2\hat{x}\) be the force my car exerts on the truck. What is \(F_1/F_2\) during the collision?

**Details and assumptions**

- You may ignore friction and air resistance.

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