To calculate the average speed of an object that started with an initial velocity and ended with zero velocity during its travel distance, you need to know the total distance traveled and the total time taken.
Average speed is calculated by dividing the total distance traveled by the total time taken:
Average Speed = Total Distance / Total Time
For example, let's say an object travels a distance of 100 meters. It starts with an initial velocity of 10 m/s and comes to rest (zero velocity) after 5 seconds.
To calculate the total distance, you can simply use the given distance traveled, which is 100 meters.
Total Distance = 100 meters
To calculate the total time taken, you need to consider the time it took for the object to come to rest. Since the object started with an initial velocity and ended with zero velocity, the time it takes to decelerate to zero must be considered. Let's say it took 3 seconds to decelerate and come to a stop.
Total Time = Time taken to decelerate + Time taken at zero velocity Total Time = 3 seconds + 5 seconds Total Time = 8 seconds
Now, we can calculate the average speed using the formula:
Average Speed = Total Distance / Total Time Average Speed = 100 meters / 8 seconds Average Speed = 12.5 meters per second
Therefore, the average speed of the object is 12.5 meters per second for the given scenario.