Question

A. What is the initial velocity (vi) of the ball?

1. vi = 0.0 m/s
2. vi = 4.56 m/s
3. vi = 9.8 m/s²
4. vi = 4.9 m/s²

Answer 1

The initial velocity (vi) of the ball is 4.90 m/s, as that is the velocity at the start of the graph provided in the description.

Step-by-step explanation:

The student is asking about the initial velocity (vi) of a ball. Considering the references provided, where the graph of the ball's vertical velocity over time begins at 4.90 m/s at t = 0, the correct answer is that the initial velocity of the ball is 4.90 m/s. To clarify, options 1, 3, and 4 are incorrect because vi represents a speed in m/s, not acceleration in m/s². So, option 2 is the correct answer.