Question

1. what is the main difference between speed and velocity?

Explanation:

Speed is a scalar quantity, meaning it only has magnitude (e.g., 5 m/s). Velocity is a vector quantity, so it has both magnitude and direction (e.g., 5 m/s north). The main difference is that velocity includes direction, while speed does not.

Answer:

The main difference is that speed is a scalar quantity (only has magnitude) and velocity is a vector quantity (has both magnitude and direction).