The problem states that a baseball is thrown vertically upward with a velocity $V$ (in feet per second) after $T$ seconds, where $V = 80 - 32T$. We need to determine the significance of the negative value of $V$ when $T = 3$.
2025/3/6
1. Problem Description
The problem states that a baseball is thrown vertically upward with a velocity (in feet per second) after seconds, where . We need to determine the significance of the negative value of when .
2. Solution Steps
First, let's calculate the velocity when :
Since the velocity is negative, it means the baseball is moving in the opposite direction to its initial direction. The initial direction was upward. Therefore, a negative velocity implies the baseball is moving downward.
3. Final Answer
The baseball is moving downward instead of upward at seconds.