Describe how the instantaneous speed of a car changes when the car is moving with constant speed , speeding up, and slowing down please answer as soon as possible
When a car is moving with a constant speed, the instantaneous speed of the car remains constant over time. This means that the car maintains the same speed without any changes.
If the car is speeding up, the instantaneous speed is increasing. This means that the car is gradually accelerating and its speed is getting faster. To determine how the instantaneous speed of the car changes, you can look at the car's acceleration. Acceleration is the rate at which the car's speed changes over time. It can be calculated by dividing the change in velocity by the time taken. If the acceleration is positive, it means the car is speeding up.
On the other hand, when the car is slowing down, the instantaneous speed is decreasing. This means that the car is decelerating, or gradually reducing its speed. Similar to the previous case, the acceleration can be used to understand how the instantaneous speed changes. If the acceleration is negative, it signifies that the car is slowing down.
To determine the instantaneous speed of a car at any given moment, you would need to measure the actual speed using a speedometer or any instrument that provides speed readings. The speedometer will display the car's instantaneous speed at that specific time.
In summary, the instantaneous speed of a car remains constant when it is moving with a constant speed, increases when the car is speeding up, and decreases when the car is slowing down. To measure the instantaneous speed, a speedometer or similar instrument should be used.