use-gravity

Gravity-specific helpers for RustUse.

Install

[dependencies]
use-gravity = "0.0.1"

Foundation

use-gravity provides small f64-first helpers for gravitational force, gravitational acceleration, orbital velocity, escape velocity, orbital period, and gravitational potential energy.

Inputs are expected to be SI-style numeric values:

• kilograms for mass
• meters for distance, radius, and height
• seconds for time
• newtons for force
• joules for energy

Example

use use_gravity::{GravityBody, escape_velocity, gravitational_force};

let earth = GravityBody::new(5.972e24, 6.371e6).unwrap();
let force = gravitational_force(1.0, 1.0, 1.0).unwrap();
let escape = escape_velocity(5.972e24, 6.371e6).unwrap();

assert_eq!(force, use_gravity::GRAVITATIONAL_CONSTANT);
assert!(earth.surface_gravity().unwrap() > 9.8);
assert!(escape > 11_000.0);

When to use directly

Choose use-gravity when you only need reusable gravity and orbit formulas.

Scope

• APIs stay f64-first and do not define a full unit system.
• The crate keeps only a couple of convenience constants locally.
• Broader constants and units belong in the top-level use-constants and use-units sets.

Status

use-gravity is a pre-1.0 crate with a deliberately small API.