Speed, unlike acceleration or velocity, does NOT specify _______.(1 point) Responses Mass Mass Direction Direction Distance Distance Time
Mass
Speed, unlike acceleration or velocity, does NOT specify direction.
Speed, unlike acceleration or velocity, does NOT specify direction.
To understand this concept, let's first define each of the terms mentioned:
1. Speed: It is a measure of how quickly an object is moving, regardless of its direction. It is a scalar quantity, meaning it only has magnitude and does not include any information about direction.
2. Acceleration: It refers to the rate at which an object's velocity changes over time. It can be in the same direction as the initial velocity (resulting in an increase in speed) or in the opposite direction (resulting in a decrease in speed). Acceleration is a vector quantity, as it includes both magnitude (the rate of change) and direction.
3. Velocity: It refers to the speed of an object in a given direction at a specific moment. Velocity is a vector quantity that includes both magnitude (the speed) and direction. For example, if a car is moving at 60 km/h to the east, its velocity would be 60 km/h to the east.
Now, coming back to the question, speed does not specify direction. When we calculate the speed of an object, we are only interested in knowing how fast it is moving, regardless of its direction. Thus, unlike acceleration or velocity, speed does not indicate the direction of motion.