diff --git a/app/(core)/physics/ForceRenderer.js b/app/(core)/physics/ForceRenderer.js
index f603cad..75386dc 100644
--- a/app/(core)/physics/ForceRenderer.js
+++ b/app/(core)/physics/ForceRenderer.js
@@ -110,7 +110,8 @@ export class ForceRenderer {
 
     let labelText = text;
     if (showMag && magnitude !== undefined) {
-      labelText = `${text} (${magnitude.toFixed(1)}N)`;
+      const unit = options.unit ?? "N";
+      labelText = `${text} (${magnitude.toFixed(1)}${unit})`;
     }
 
     p.push();
diff --git a/simulations/BallAcceleration.jsx b/simulations/BallAcceleration.jsx
index 272cc0e..816848c 100644
--- a/simulations/BallAcceleration.jsx
+++ b/simulations/BallAcceleration.jsx
@@ -222,7 +222,8 @@ export default function BallAcceleration() {
             accelerationForce.x / bodyRef.current.params.mass,
             -(accelerationForce.y / bodyRef.current.params.mass),
             "#ef4444",
-            "Acceleration"
+            "Acceleration",
+            { unit: "m/s²" }
           );
         }
 
diff --git a/simulations/BallGravity.jsx b/simulations/BallGravity.jsx
index d232d95..2e6f5bc 100644
--- a/simulations/BallGravity.jsx
+++ b/simulations/BallGravity.jsx
@@ -226,7 +226,7 @@ export default function BallGravity() {
             kineticEnergy: bodyRef.current.getKineticEnergy(),
             potentialEnergy: bodyRef.current.getPotentialEnergy(
               gravity,
-              toMeters(p.height)
+              size / 2
             ),
           },
           {