The diagram below shows the before and after image of a cannon-cannonball system. Initially, the cannon-cannonball system are combined as a single mass at a resting position. After collision, the cannon and cannonball are separated, each having their own velocities.
the 24.6 kg cannonball leaves the 1696.5 kg cannon at a velocity of 184.2 m/s, what is the magnitude of the recoil velocity of the cannon?