Car a travels from new york to miami at 25 m/s. car b travels from new york to chicago, also at 25 m/s. car a and car b have speeds and velocities.
a) equal, equal

b) equal, different

c) different, equal

d) different, different

B) equal, different

Explanation:

- Speed is the ratio between the distance covered by an object and the time taken:

And it is a scalar, because it has only a magnitude, so it does not depend on the direction of the motion.

- Velocity is instead a vector, consisting of a magnitude (which is equal to the ratio between the displacement and the time taken:

and a direction.

In this problem, the two cars have same speed (25 m/s) but different velocities, because they travel in different directions.

a sonic boom is a loud boom that breaks the sound barrier

explanation: