---
title: "Two projectiles, 1 and 2, are launched from level ground at different angles. Projectile 1 is launched at an angle of \\(30^{\\circ}\\) above the horizontal, and projectile 2 is launched at an angle of \\(60^{\\circ}\\) above the horizontal. Both projectiles reach the same maximum vertical height \\(H\\) before returning to the ground. Which of the following correctly compares the times \\(t_1\\) and \\(t_2\\) the projectiles are in the air and their initial launch speeds \\(v_1\\) and \\(v_2\\)?"
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url: "https://nerd-notes.com/ubq/113953/"
date_modified: "2026-06-22T09:07:30+00:00"
---

# Two projectiles, 1 and 2, are launched from level ground at different angles. Projectile 1 is launched at an angle of \(30^{\circ}\) above the horizontal, and projectile 2 is launched at an angle of \(60^{\circ}\) above the horizontal. Both projectiles reach the same maximum vertical height \(H\) before returning to the ground. Which of the following correctly compares the times \(t_1\) and \(t_2\) the projectiles are in the air and their initial launch speeds \(v_1\) and \(v_2\)?

Two projectiles, 1 and 2, are launched from level ground at different angles. Projectile 1 is launched at an angle of \(30^{\circ}\) above the horizontal, and projectile 2 is launched at an angle of \(60^{\circ}\) above the horizontal. Both projectiles reach the same maximum vertical height \(H\) before returning to the ground. Which of the following correctly compares the times \(t_1\) and \(t_2\) the projectiles are in the air and their initial launch speeds \(v_1\) and \(v_2\)?

![A graph of vertical position y versus horizontal position x. Two parabolic paths start at the origin (0,0) AND reach the same height but have different widths. Path 1 is a wide, shallow parabola. Path 2 is a narrow, tall parabola. BOTH paths MUST reach the same vertical height H, indicated by a dashed horizontal line.](https://nerd-notes.com/wp-content/uploads/ubq-diagrams/ubq-frq-generatedstem-fig-1-1782119250-QbJ3XR.jpg)

- **A.** | Time Comparison | Speed Comparison | | :--- | :--- | | \(t_1 = t_2\) | \(v_1 > v_2\) |
- **B.** | Time Comparison | Speed Comparison | | :--- | :--- | | \(t_1 = t_2\) | \(v_1 < v_2\) |
- **C.** | Time Comparison | Speed Comparison | | :--- | :--- | | \(t_1 < t_2\) | \(v_1 = v_2\) |
- **D.** | Time Comparison | Speed Comparison | | :--- | :--- | | \(t_1 < t_2\) | \(v_1 > v_2\) |

*The answer key and step-by-step explanation are available to logged-in users at https://nerd-notes.com/ubq/113953/*