A car that is traveling west at a constant rate has(1 point) Responses acceleration and speed, but no velocity. acceleration and speed, but no velocity. speed, but neither velocity nor acceleration. speed, but neither velocity nor acceleration. speed and velocity, but no acceleration. speed and velocity, but no acceleration. velocity, but neither acceleration nor speed. velocity, but neither acceleration nor speed.
velocity, but neither acceleration nor speed.
A car that is traveling west at a constant rate has speed and velocity, but no acceleration.
The correct answer is "speed, but neither velocity nor acceleration."
To understand why, let's break down the terms:
- Speed refers to how fast an object is moving and is defined as the distance covered per unit of time. It is a scalar quantity, meaning it only has magnitude and no direction.
- Velocity, on the other hand, refers to the rate of change of displacement and includes both the magnitude (speed) and direction. Velocity is a vector quantity, meaning it has both magnitude and direction.
- Acceleration represents the rate of change of velocity. It is also a vector quantity, as it includes both magnitude and direction.
Now, in the given scenario, the car is traveling west at a constant rate. Since it is mentioned that the car is traveling at a constant rate, we can conclude that there is no change in its velocity. Velocity involves both speed and direction, so if there is no change in either of them, we cannot have velocity.
However, the car is still moving and has a certain speed, which refers to how fast it is traveling without considering the direction. There is also no mention of any change in speed, indicating that there is no acceleration.
Therefore, the car in this scenario has speed but does not have velocity or acceleration.