---
title: "Two students are on a balcony \\(19.6 \\, \\text{m}\\) above the street. One student throws a ball vertically downward at \\(14.7 \\, \\text{m/s}\\). At the same instant, the other student throws a ball vertically upward at the same speed. The second ball just misses the balcony on the way down."
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url: "https://nerd-notes.com/ubq/19109/"
date_modified: "2026-08-05T07:13:09+00:00"
---

# Two students are on a balcony \(19.6 \, \text{m}\) above the street. One student throws a ball vertically downward at \(14.7 \, \text{m/s}\). At the same instant, the other student throws a ball vertically upward at the same speed. The second ball just misses the balcony on the way down.

Two students are on a balcony \(19.6 \, \text{m}\) above the street. One student throws a ball vertically downward at \(14.7 \, \text{m/s}\). At the same instant, the other student throws a ball vertically upward at the same speed. The second ball just misses the balcony on the way down.

**Part a)** What is the difference in the time the balls spend in the air? *(2 points)*

**Part b)** What is the velocity of each ball as it strikes the ground? *(2 points)*

**Part c)** How far apart are the balls \(0.800 \, \text{s}\) after they are thrown? *(3 points)*


*The answer key and step-by-step explanation are available to logged-in users at https://nerd-notes.com/ubq/19109/*