Which choice represents velocity? (1 point)
A. 12 m/s2
B. 15 km/hr west
C. 35 m/s
D. 4 g/mL.
C. 35 m/s
Choice C represents velocity, which is given as 35 m/s.
Velocity represents the speed and direction of an object's motion. It is a vector quantity, which means it has both magnitude (numerical value) and direction. In the given choices, option C is the representation of velocity: 35 m/s.
To determine the answer, you need to understand the units used for velocity. In this case, it is meters per second (m/s), which is the standard unit for velocity.
Option A (12 m/s^2) is incorrect because it represents acceleration (change in velocity per unit time) instead of velocity itself.
Option B (15 km/hr west) is incorrect because it represents speed (magnitude of velocity) and direction but is not in the standard unit of velocity. However, it could be converted to 4.17 m/s west, which would then represent velocity.
Option C (35 m/s) is the correct representation of velocity as it is given in the standard unit of meters per second.
Option D (4 g/mL) is incorrect because it is not a unit of velocity. It represents density (mass per unit volume) with the units grams per milliliter.
So, the correct choice representing velocity is C.