Final answer:
Instantaneous speed tells us how fast an object is moving at a specific point in time. It provides detailed information about the object's motion and allows us to understand its acceleration, deceleration, and behavior at different points. Analyzing the speed at each second can reveal insights, such as a car braking and coming to a stop.
Step-by-step explanation:
When we talk about the speed of an object at each second, we are referring to its instantaneous speed. Instantaneous speed is the speed of an object at a specific point in time. It tells us how fast the object is moving at that particular moment. For example, if a car's speedometer shows 60 mph, it means that the car is traveling at a speed of 60 miles per hour at that instant.
Instantaneous speed is important because it provides more detailed information about the object's motion. It allows us to understand how the speed of the object changes over time and how it behaves at different points in its motion. By analyzing the instantaneous speeds at each second, we can gain insights into the acceleration, deceleration, and overall behavior of the object.
For example, if we observe the speed of a car decreasing rapidly from 60 mph to 0 mph over a few seconds, we can conclude that the car is braking and coming to a stop.