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Question

A baseball is thrown from the outfield toward the catcher. When the ball reaches its highest point, which statement is true?

Solution

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Let the ball is thrown from the outfield toward the catcher with initial velocity $v_0$ at an angle $\theta$. Since there is no other froce acting on the ball other than the gravitational force. Therefore the motion of the ball is projectile motion. The trajectory of the baseball is shown in the figure below.

Let the ball is thrown from the outfield toward the catcher with initial velocity $v_0$ at an angle $\theta$. Since there is no other froce acting on the ball other than the gravitational force. Therefore the motion of the ball is projectile motion. The trajectory of the baseball is shown in the figure below.

Here $v_{0\text{x}}$ is the horizontal velocity.

$v_{\text{y}}$ is the vertical velocity.

$a_{\text{x}}$ is the horizontal acceleration.

$a_{\text{y}}$ is the vertical acceleration.

When the ball at the highest point then only its vertical velocity $v_{\text{y}}$ is zero and the horizontal velocity remains constant during the motion and horizontal acceleration $a_{\text{x}}$ is zero and vertical acceleration $a_{\text{y}} = g$ throughout the motion as shown in the figure below.

$\textbf{(b)}$ False.

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