---
title: "A hydraulic jack is used to lift a heavy load. If the input piston is pushed down a distance \\( d_1 \\), and the output piston moves up a distance \\( d_2 \\), which of the following expressions must be true for an ideal, incompressible fluid?"
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url: "https://nerd-notes.com/ubq/107128/"
date_modified: "2026-08-18T02:38:22+00:00"
---

# A hydraulic jack is used to lift a heavy load. If the input piston is pushed down a distance \( d_1 \), and the output piston moves up a distance \( d_2 \), which of the following expressions must be true for an ideal, incompressible fluid?

A hydraulic jack is used to lift a heavy load. If the input piston is pushed down a distance \( d_1 \), and the output piston moves up a distance \( d_2 \), which of the following expressions must be true for an ideal, incompressible fluid?

- **A.** \( F_1 d_1 = F_2 d_2 \) is only true if there is no gravity.
- **B.** \[ d_1 = d_2 \]
- **C.** \[ A_1 d_1 = A_2 d_2 \]
- **D.** \[ \dfrac{d_1}{A_1} = \dfrac{d_2}{A_2} \]

*The answer key and step-by-step explanation are available to logged-in users at https://nerd-notes.com/ubq/107128/*