From 8a4480eb0aef4b91ec449157c928df7731d637fb Mon Sep 17 00:00:00 2001
From: Ewall198 <ewall198@gmail.com>
Date: Sat, 18 Apr 2020 16:32:56 -0400
Subject: [PATCH] Issue #855: Using seconds to calculate velocity from force

---
 src/body/Body.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/body/Body.js b/src/body/Body.js
index f38d2c8..b8637e2 100644
--- a/src/body/Body.js
+++ b/src/body/Body.js
@@ -628,7 +628,8 @@ var Axes = require('../geometry/Axes');
      * @param {number} correction
      */
     Body.update = function(body, deltaTime, timeScale, correction) {
-        var deltaTimeSquared = Math.pow(deltaTime * timeScale * body.timeScale, 2);
+        // Delta time squared in seconds
+        var deltaTimeSquared = Math.pow(deltaTime / 1000 * timeScale * body.timeScale, 2);
 
         // from the previous step
         var frictionAir = 1 - body.frictionAir * timeScale * body.timeScale,