Understanding Momentum

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

* p = mv

where:

* p is momentum (in kg m/s)

* m is mass (in kg)

* v is velocity (in m/s)

Solving for Velocity

1. Rearrange the equation: We want to find velocity (v), so rearrange the momentum equation:

v = p / m

2. Plug in the values:

v = 45,000 kg m/s / 200 kg

3. Calculate:

v = 225 m/s

Answer: The magnitude of the spaceship's velocity is 225 m/s to the right.