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## Homework Statement

**A**Car A (with a mass of 750Kg) is travailing at 30 m s-1 and collides head on with car B travailing at 20 m s-1 with a (mass 1600kg) in the opposite direction

## Homework Equations

**A**Calculate the magnitude of the momentum of each car before crashing

**B**If the two cars lock together in the crash, in which direction will they be moving immediately after the collision?

**C**

**I**Calculate the initial speed of the combined wreck immediately after the collision

**II**why dose the speed quickly reduce to zero?

## The Attempt at a Solution

...ok so far i have drawn a picture like so...

(carA)----------------><---------(carB)

|750kg|-----|30ms-1|-------|20ms-1|--|1600kg|

lol i have no idea...also i have the answerers in the back of the book but that's not learning so that's why i came here :)

any help would be great! even if you could point me in the right direction

Thanks

housedog1