Question

13 colton throws a ball vertically into the air. at its highest point, it is 4.5 meters above the ground. what is the balls velocity when it is at its high point? 0 m/s 4.5 m/s 0.81 m/s -9.81 m/s

Explanation:

Step1: Analyze the motion of the ball

When a ball is thrown vertically upwards, its velocity decreases due to the acceleration of gravity ($g = 9.81\ m/s^{2}$ acting downwards). At the highest point of its trajectory, the ball stops momentarily before starting to fall back down.

Step2: Determine the velocity at the highest point

At the highest point, the instantaneous velocity of the ball is \(0\ m/s\) because the ball has just come to rest before changing its direction of motion. The height of \(4.5\ m\) is extra information for this particular question about velocity at the highest - point.

Answer:

0 m/s