Question

speed problems

1. how are speed and velocity different?
2. what is the si unit for speed/velocity?

Explanation:

1. Speed is a scalar quantity (only magnitude), while velocity is a vector quantity (magnitude and direction).
2. The SI unit for both speed and velocity is meters per second ($m/s$).

Answer:

1. Speed is scalar (magnitude only), velocity is vector (magnitude and direction).
2. Meters per second ($m/s$).