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TM1: Velocity Differential Equation

Equation

\[ \frac{d\mathbf{v}}{dt} = \frac{\sum\mathbf{F}}{m} - \mathbf{g} \]

Description

This differential equation describes the change in velocity at each time step (\(\Delta t\)) given the forces acting on the object and the gravitational acceleration.

  • \(\mathbf{F}\) is the sum of all forces acting on the object.

  • \(\mathbf{g}\) is the gravitational acceleration vector, pointing downwards.

  • \(m\) is the mass of the object.

Notes

To use this differential equation, we need to start from an initial velocity \(\mathbf{v}_0\) and update the velocity at each time step.

Sources

Carlucci 20071

Uses

Other models/definitions that are used in this model.

DD1: Sum of Forces

Referenced by


  1. Donald E Carlucci. Ballistics: theory and design of guns and ammunition. Crc Press, 2007.