M=9 v0=500м/с m1=5кг m2= 4кг V1 = +200м/с = 700м/с V2-?

To solve for V2, we can use the conservation of momentum equation:

m1 * V1 + m2 * V2 = (m1 + m2) * Vf

Given: m1 = 5 kg m2 = 4 kg V1 = 700 m/s (assuming you made a typo and it is actually 700 m/s, not 200 m/s)

Substituting these values into the equation, we get:

(5 kg * 700 m/s) + (4 kg * V2) = (5 kg + 4 kg) * Vf

3500 kg*m/s + 4 kg * V2 = 9 kg * Vf

Rearranging the equation to solve for V2:

4 kg * V2 = 9 kg * Vf - 3500 kg*m/s

Divide both sides by 4 kg:

V2 = (9 kg * Vf - 3500 kg*m/s) / 4 kg

Now we need the final velocity, Vf. However, it is not provided in the given information. Can you provide the value for Vf? Otherwise, we won't be able to calculate V2.