Understanding Momentum

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

* p = mv

* where 'm' is the mass and 'v' is the velocity.

Solving for Speed

1. Given information:

* Mass (m) = 150 kg

* Momentum (p) = 900 kgms

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

* v = p / m

3. Substitute the given values:

* v = 900 kgms / 150 kg

4. Calculate the speed:

* v = 6 m/s

Therefore, the speed of Spaceship 1 and 2 is 6 meters per second.