A gun of mass 2kg fires a bullet of mass 80g at a speed of 300 m/s. With what speed will the gun recoil?

Here are the solutions to the physics problems:

: Gun Recoil
A gun of mass 2kg fires a bullet of mass 80g at a speed of 300 m/s. With what speed will the gun recoil?

Step 1: Identify the given values and convert units.
Mass of gun, $M_g = 2 \text{ kg}$
Mass of bullet, $M_b = 80 \text{ g} = 0.080 \text{ kg}$
Speed of bullet after firing, $v_b = 300 \text{ m/s}$
Initial speed of gun and bullet (at rest), $u_g = u_b =