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## Homework Statement

You load a 100kg cannon with a 10kg cannonball. Initially the cannon is at rest. You fire the cannonball at a velocity of 150m/s.

## Homework Equations

Momentum = mass • velocity

## The Attempt at a Solution

I'm having trouble coming up with the scenario for the problem. The four parts of the equation essentially.

The initial position would be the cannon at rest, so it's not moving.

Velocity = 0. Mass = 110kg.

I would assume the next position would be the cannon firing..

That would mean the velocity is 150m/s going to the right.

At the same time the cannon would move to the left... I'm not quite sure how to split the problem up into 4 scenarios.. I could use a few pointers.