---
title: "The magnitude of the gravitational field on the surface of a new planet is \\(20 \\, \\text{N/kg}\\). The planet’s mass is half the mass of Earth. The radius of Earth is \\(6400 \\, \\text{km}\\). What is the radius of the new planet?"
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url: "https://nerd-notes.com/ubq/23961/"
date_modified: "2025-09-23T03:24:10+00:00"
---

# The magnitude of the gravitational field on the surface of a new planet is \(20 \, \text{N/kg}\). The planet’s mass is half the mass of Earth. The radius of Earth is \(6400 \, \text{km}\). What is the radius of the new planet?

The magnitude of the gravitational field on the surface of a new planet is \(20 \, \text{N/kg}\). The planet’s mass is half the mass of Earth. The radius of Earth is \(6400 \, \text{km}\). What is the radius of the new planet?

*The answer key and step-by-step explanation are available to logged-in users at https://nerd-notes.com/ubq/23961/*