if 4 cars were going 100m the entire time what happens to speed,velocity and accelerationas one car completes one full lap

To answer your question about what happens to speed, velocity, and acceleration as one car completes one full lap, let's break it down step by step.

First, let's define the terms:
1. Speed: Speed is a measure of how fast an object is moving. It is a scalar quantity and is calculated by dividing the distance traveled by the time taken.
2. Velocity: Velocity is similar to speed, but it includes direction. It is a vector quantity and is calculated by dividing the displacement (change in position) by the time taken.
3. Acceleration: Acceleration is the rate at which velocity changes. It is a vector quantity and is calculated by dividing the change in velocity by the time taken.

Now, let's analyze the scenario:
If four cars were going 100 meters the entire time, we can assume that they are moving in a circular path, such as a racetrack, and completing one full lap.

1. Speed: Since the cars are maintaining a constant speed of 100 meters, the speed remains constant throughout the lap. The speed at any point on the lap will be 100 meters per unit of time (e.g., 100 meters per second).

2. Velocity: As velocity is a combination of speed and direction, we need to consider the direction of motion. In one lap around the circular racetrack, the cars return to their starting point, meaning their displacement is zero. Therefore, the average velocity for one full lap is zero because there is no change in position. However, the instantaneous velocity at any point on the lap will depend on the car's direction of motion. For example, if we take the velocity at the starting point, it will be 100 meters per unit of time (in the direction of motion).

3. Acceleration: Since the cars are moving at a constant speed and maintaining the same direction, there is no change in velocity during the lap. Therefore, the acceleration is zero for the entire lap because there is no change in velocity.

In conclusion, as one car completes one full lap, the speed remains constant at 100 meters per unit of time, the average velocity is zero, and the acceleration is zero.