A boy tosses a ball into the air so it follows the 2-D parabolic curve in x and y as shown in the drawing. Using this figure, identify at which of the points the ball's vertical velocity component is zero.

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Chapter1: Units, Trigonometry. And Vectors
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**Projectile Motion: Identifying the Point of Zero Vertical Velocity**

When a boy tosses a ball into the air, it follows a 2-dimensional parabolic curve in the x and y directions, as depicted in the diagram.

**Question:**
Using this figure, identify at which of the points the ball's vertical velocity component is zero.

![Projectile Motion Diagram]

In the diagram, the parabolic trajectory of the ball is shown with points A, B, C, and D marked along the path. An XY coordinate system is depicted with the curve.

**Choices:**
- ☐ Point A
- ☑ Point B
- ☐ Point C
- ☐ Point D
- ☐ All of them

At point B, which is the highest point of the parabolic trajectory, the ball's vertical velocity component is zero. This is because, at the peak of its flight, the ball changes direction from moving upward to moving downward, momentarily resulting in zero vertical velocity.
Transcribed Image Text:**Projectile Motion: Identifying the Point of Zero Vertical Velocity** When a boy tosses a ball into the air, it follows a 2-dimensional parabolic curve in the x and y directions, as depicted in the diagram. **Question:** Using this figure, identify at which of the points the ball's vertical velocity component is zero. ![Projectile Motion Diagram] In the diagram, the parabolic trajectory of the ball is shown with points A, B, C, and D marked along the path. An XY coordinate system is depicted with the curve. **Choices:** - ☐ Point A - ☑ Point B - ☐ Point C - ☐ Point D - ☐ All of them At point B, which is the highest point of the parabolic trajectory, the ball's vertical velocity component is zero. This is because, at the peak of its flight, the ball changes direction from moving upward to moving downward, momentarily resulting in zero vertical velocity.
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