From 71352aa3a56e8cbc42139b008176f83d360f4276 Mon Sep 17 00:00:00 2001 From: luc Date: Sun, 14 Sep 2025 16:37:04 +0200 Subject: [PATCH] physics/spacetime/special-formalism.md: update --- docs/physics/spacetime/special-formalism.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/docs/physics/spacetime/special-formalism.md b/docs/physics/spacetime/special-formalism.md index 209ac73..12252be 100644 --- a/docs/physics/spacetime/special-formalism.md +++ b/docs/physics/spacetime/special-formalism.md @@ -247,7 +247,7 @@ The four-acceleration can only change the direction of the four-velocity, as the A related concept is the **four-force** which in terms of the four-momentum may be defined as $$ - \mathbf{f} = d_\tau \mathbf{p} \overset{\mathrm{def}}{=} m d^2_\tau \mathbf{a}. + \mathbf{f} = d_\tau \mathbf{p} \overset{\mathrm{def}}{=} m \mathbf{a}. $$ In the case that a constant force $F$ in the $x$ direction acts on a body we have that the four-force on that body adheres to