Understanding Momentum

* Momentum (p) is a measure of an object's mass in motion. It's calculated as:

* p = mv (where m = mass and v = velocity)

Solving the Problem

1. Given:

* Mass (m) = 300 kg

* Momentum (p) = 600 kg m/s

2. Formula:

* p = mv

3. Rearrange to solve for velocity (v):

* v = p / m

4. Substitute the given values:

* v = 600 kg m/s / 300 kg

5. Calculate:

* v = 2 m/s

Answer: The speed of spaceship 1 and 2 is 2 m/s.