Understanding Momentum
* Momentum (p): A measure of an object's mass in motion. It's calculated as:
* p = m * v
* Where:
* p = momentum (kg*m/s)
* m = mass (kg)
* v = velocity (m/s)
Solving for Velocity
1. Given:
* Momentum (p) = 20000 kg*m/s (to the left)
* Mass (m) = 500 kg
2. Rearrange the momentum equation to solve for velocity (v):
* v = p / m
3. Plug in the values:
* v = 20000 kg*m/s / 500 kg
4. Calculate:
* v = 40 m/s
Answer: The magnitude of the spaceship's velocity is 40 m/s.
Important Note: The problem states the momentum is "to the left." This means the velocity is also directed to the left.
