---
title: "In the lab, a student is given a glass beaker filled with water with an ice cube of mass \\( m \\) and volume \\( V_c \\) floating in it.  The downward force of gravity on the ice cube has magnitude \\( F_g \\). The student pushes down on the ice cube with a force of magnitude \\( F_P \\) so that the cube is totally submerged. The water then exerts an upward buoyant force on the ice cube of magnitude \\( F_B \\). Which of the following is an expression for the magnitude of the acceleration of the ice cube when it is released?"
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url: "https://nerd-notes.com/ubq/79354/"
date_modified: "2026-04-23T09:32:30+00:00"
---

# In the lab, a student is given a glass beaker filled with water with an ice cube of mass \( m \) and volume \( V_c \) floating in it.  The downward force of gravity on the ice cube has magnitude \( F_g \). The student pushes down on the ice cube with a force of magnitude \( F_P \) so that the cube is totally submerged. The water then exerts an upward buoyant force on the ice cube of magnitude \( F_B \). Which of the following is an expression for the magnitude of the acceleration of the ice cube when it is released?

In the lab, a student is given a glass beaker filled with water with an ice cube of mass \( m \) and volume \( V_c \) floating in it.

The downward force of gravity on the ice cube has magnitude \( F_g \). The student pushes down on the ice cube with a force of magnitude \( F_P \) so that the cube is totally submerged. The water then exerts an upward buoyant force on the ice cube of magnitude \( F_B \). Which of the following is an expression for the magnitude of the acceleration of the ice cube when it is released?

- **A.** \[\frac{F_B – F_g – F_P}{m}\]
- **B.** \[\frac{F_B – F_g}{m}\]
- **C.** \[\frac{F_P + F_g – F_B}{m}\]
- **D.** \[\frac{F_P – F_g}{m}\]

*The answer key and step-by-step explanation are available to logged-in users at https://nerd-notes.com/ubq/79354/*