---
title: "Ball 1 is dropped from rest at time t = 0 from a tower of height h, as shown above. At the same instant, ball 2 is launched upward from the ground with the initial speed  v0 . If air resistance is negligible, at what time t will the two balls pass each other?  "
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url: "https://nerd-notes.com/ubq/39112/"
date_modified: "2025-08-12T07:20:48+00:00"
---

# Ball 1 is dropped from rest at time t = 0 from a tower of height h, as shown above. At the same instant, ball 2 is launched upward from the ground with the initial speed  v0 . If air resistance is negligible, at what time t will the two balls pass each other?  

Ball 1 is dropped from rest at time \( t = 0 \) from a tower of height \( h \). At the same instant, ball 2 is launched upward from the ground with the initial speed \( v_0 \). If air resistance is negligible, at what time \( t \) will the two balls pass each other?

- **A.** \[\frac{1}{4} \frac{h}{v_0}\]
- **B.** \[\frac{1}{2} \frac{h}{v_0}\]
- **C.** \[\frac{h}{v_0}\]
- **D.** \[2\frac{h}{v_0}\]
- **E.** \[4\frac{h}{v_0}\]

*The answer key and step-by-step explanation are available to logged-in users at https://nerd-notes.com/ubq/39112/*