It's gonna crash!

In a crash test, a \(1.5\) metric ton vehicle collides a brick wall. The initial velocity of the vehicle is \(v_{i}=-10\text{ m/s}\) while its final velocity is \(v_{f}=2.6\text{ m/s}\). If the collision lasts for \(0.2\) seconds, what is the average force (in Newtons) exerted on the vehicle due to the collision?

Image credit: Wikipedia Brady Holt
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