Help!!!!!!!!!A 2.15 x 103 kg truck travels at 30.0 m/s when it collides...

[GoveD]

...head on with a light post. If th....? 1.A 2.15 x 103 kg truck travels at 30.0 m/s when it collides head on with a light post. If the truck comes to a complete stop in 0.45 s, what is the average force exerted on the truck by the post during the collision?

please show me how to do this question

 

[jamesg]

Your sure have a lot homework... XD

Use the formula I gave you in the previous questions you asked.

(I don't know if you have to actually 2.15 x 103 kg) This never came up in my exam so I was never taught it