Final answer:
600 m/s² is an example of acceleration, which is the rate of change of velocity of an object. Acceleration is represented in SI units as meters per second squared (m/s²) and is different from speed, a scalar, and velocity, which also takes direction into account.
Step-by-step explanation:
600 m/s² is an example of acceleration, not speed or velocity. Acceleration refers to the rate of change of velocity of an object over time. It is often represented in units of meters per second squared (m/s²). In contrast, speed is a scalar quantity that refers to how fast an object is moving, and velocity is a vector quantity that describes both the speed and direction of an object's motion.
To answer other related questions, acceleration can be observed on a velocity vs. time graph, which can provide information about the acceleration, direction of motion, and the reference frame of the motion. The magnitude of average velocity can be greater or less than the average speed, depending on the direction of travel and any changes in direction during the travel period. Activities such as a person standing up or a car accelerating illustrate examples of acceleration.
In the context of vectors and scalars, displacement, velocity, and acceleration are all vectors, while speed is a scalar. Lastly, the SI units of acceleration are meters per second squared (m/s²), as acceleration is defined as the rate of change of velocity.