From 139888376913d0509f7f26e9ea2dba2fb6182f1c Mon Sep 17 00:00:00 2001
From: siddhant <237064492+Siddhant52@users.noreply.github.com>
Date: Sat, 20 Jun 2026 23:32:03 +0530
Subject: [PATCH] fix: derive circular motion velocity from centripetal force
 instead of forcing constant speed

---
 simulations/CircularMotion.jsx | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/simulations/CircularMotion.jsx b/simulations/CircularMotion.jsx
index bbf7a43b..bafd91dd 100644
--- a/simulations/CircularMotion.jsx
+++ b/simulations/CircularMotion.jsx
@@ -148,9 +148,12 @@ export default function CircularMotion() {
           bodyRef.current.applyForce(centripetalForce);
         }
 
-        // Enforce constant speed
-        if (bodyRef.current.state.velocity.mag() > 0) {
-          bodyRef.current.state.velocity.setMag(speed);
+        // Gently correct for numerical drift (instead of forcing speed every frame)
+        const currentSpeed = bodyRef.current.state.velocity.mag();
+        if (currentSpeed > 0) {
+          const correctionFactor =
+            1 + ((speed - currentSpeed) / currentSpeed) * 0.05;
+          bodyRef.current.state.velocity.mult(correctionFactor);
         }
 
         // Step physics