Question

what is the main difference between the speed and the velocity of an object?
a speed has no direction associated with it, while velocity has a specific direction.
b speed has a direction associated with it, while velocity has no specific direction.
c velocity is the change in distance over time, while speed is the change in velocity over time.
d velocity is the changes in speed over time, while speed is the change in distance over time.

Explanation:

Speed is a scalar quantity (only magnitude, no direction), while velocity is a vector quantity (magnitude + specific direction). This is the core difference between the two.

Answer:

A. Speed has no direction associated with it, while velocity has a specific direction.