A student throws a ball vertically upward such that it travels 6.8m to its maximum height.If it i caught at 2.4s. What is the average speed? What is the average velocity?
Avg. speed = d/t = 6.8/2.4 = 2.83 m/s.
To find the average speed and average velocity of the ball, we need some additional information. Specifically, we need to know the initial velocity of the ball when it was thrown. Without this information, we cannot accurately determine the average speed and average velocity.
Average speed is defined as the total distance traveled divided by the total time taken. In this case, the total distance traveled is 6.8m (distance from the student's hand to the maximum height) and the total time taken is 2.4s (time it takes for the ball to reach maximum height and be caught).
To calculate the average speed, we can use the formula:
Average Speed = Total distance / Total time
Average Speed = 6.8m / 2.4s = 2.83 m/s (approximately)
On the other hand, average velocity not only takes into account the total displacement but also the direction of motion. Since the ball is thrown vertically upward and caught at the same height, the displacement is zero. Therefore, the average velocity would be zero.
In summary:
- The average speed is approximately 2.83 m/s.
- The average velocity is zero.