Which choice represents velocity?(1 point) Responses 35 m/s 35 m/s 15 km/hr west 15 km/hr west 12 m/s2 12 m/s2 4 g/mL
The correct choice that represents velocity is: 35 m/s
The choice "35 m/s" represents velocity.
To identify which choice represents velocity, we need to understand what velocity is.
Velocity is a measure of the rate at which an object changes its position in a specific direction. It is a vector quantity, which means it has both magnitude (numerical value) and direction.
Now, let's evaluate each choice and determine which one represents velocity:
1) 35 m/s: This is a measure of speed, but it does not indicate the direction, so it is not velocity.
2) 35 m/s: This is the same as the previous choice, and it also lacks direction.
3) 15 km/hr west: This choice specifies a magnitude (15 km/hr) along with a direction (west). Therefore, it represents velocity because it has both magnitude and direction.
4) 15 km/hr west: This is the same as the previous choice and represents velocity.
5) 12 m/s^2: This represents acceleration, not velocity. It is a measure of how quickly an object's velocity changes over time.
6) 4 g/mL: This represents density, not velocity. Density measures mass per unit volume.
So, the choices that represent velocity are:
- 15 km/hr west
- 15 km/hr west