Speed, unlike acceleration or velocity, does NOT specify _______.
Distance
Mass
Direction
Time
Mass
Speed, unlike acceleration or velocity, does NOT specify direction.
To determine the correct answer, we need to understand the concept of speed and how it differs from other related concepts. Speed is a scalar quantity that represents the rate of change of distance covered by an object over time. It is defined as the magnitude of velocity and does not take into account the direction of motion.
Acceleration, on the other hand, is the rate of change of velocity over time and includes both the change in speed and direction. Velocity, similar to speed, is a vector quantity that includes both magnitude and direction. Mass, on the other hand, is a measure of an object's inertia, which is unrelated to speed, acceleration, or velocity.
Therefore, the correct answer is "mass." Speed does not specify the mass of an object but rather focuses solely on the magnitude of its motion without considering direction.