Understanding Momentum

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

* p = mv

Where:

* p = momentum

* m = mass

* v = velocity (speed)

Solving for Speed

1. We know:

* Momentum (p) = 900 kg·m/s

* Mass (m) = 150 kg

2. Rearrange the momentum equation to solve for velocity (speed):

* v = p / m

3. Plug in the values:

* v = 900 kg·m/s / 150 kg

4. Calculate:

* v = 6 m/s

Answer: The speed of Spaceship 1 and 2 is 6 m/s.