Question

mr. smith is designing a race where velocity will be measured. which course would allow velocity to accurately get a winner?
a 5 mile course from the center of town heading north to the outskirts of town
a 100 meter swim in a 50 meter pool
a 2 mile run around a 400 meter track
a 10 mile bike course that zigzags through the mountains and back again

Explanation:

Velocity is a vector quantity that requires both magnitude and direction. A straight - line course with a single direction will allow for accurate velocity measurement. The 5 - mile course from the center of town heading north has a definite direction and distance. The 100 - meter swim in a 50 - meter pool involves turning, the 2 - mile run around a track has circular motion, and the 10 - mile bike course zigzags, which all complicate direction determination for velocity.

Answer:

a 5 mile course from the center of town heading north to the outskirts of town