A car that is traveling west at a constant rate has(1 point)
Responses
speed and velocity, but no acceleration.
speed and velocity, but no acceleration.
velocity, but neither acceleration nor speed.
velocity, but neither acceleration nor speed.
acceleration and speed, but no velocity.
acceleration and speed, but no velocity.
speed, but neither velocity nor acceleration.
velocity, but neither acceleration nor speed.
The correct answer is: velocity, but neither acceleration nor speed.
To understand why, let's break down the definitions of speed, velocity, and acceleration:
1. Speed: Speed is the rate at which an object covers distance. It is a scalar quantity that only takes into account the magnitude of the displacement, regardless of the direction. Speed is determined by dividing the distance traveled by the time taken.
2. Velocity: Velocity is the rate at which an object changes its position. It is a vector quantity that includes both the magnitude (speed) and the direction of displacement. Velocity is determined by dividing the change in displacement by the time taken.
3. Acceleration: Acceleration is the rate at which an object changes its velocity. It is a vector quantity that represents the change in velocity per unit of time. Acceleration can be positive (speeding up), negative (slowing down), or zero (constant velocity).
In the given scenario, the car is traveling west at a constant rate. Since the car's rate of travel is constant, it means there is no change in its velocity. Velocity depends on both speed and direction, so if the direction remains constant, the velocity remains constant as well. Therefore, the car has a constant velocity.
However, since the velocity is constant, there is no acceleration. Acceleration represents a change in velocity, and since the car's velocity is not changing, there is no acceleration.
Hence, the car has velocity but neither acceleration nor speed.
The correct answer is:
velocity, but neither acceleration nor speed.
are you sure??
Yes, I am sure. In the given scenario, since the car is traveling west at a constant rate, there is no change in its velocity. Velocity depends on both speed and direction, so if the direction remains constant, the velocity remains constant as well. Therefore, the car has a constant velocity.
However, since the velocity is constant, there is no acceleration. Acceleration represents a change in velocity, and since the car's velocity is not changing, there is no acceleration.
Hence, the car has velocity but neither acceleration nor speed.