diff --git a/docs/DEFERRED.md b/docs/DEFERRED.md
index cd735ea..a2323eb 100644
--- a/docs/DEFERRED.md
+++ b/docs/DEFERRED.md
@@ -49,6 +49,13 @@
 - **Incremental BVH 업데이트** — 매 프레임 전체 rebuild. 성능 이슈 시 incremental update 적용.
 - **연속 충돌 감지 (CCD)** — 이산 충돌만. 빠른 물체의 터널링 미처리.
 
+## Phase 5-2
+
+- **각속도/회전 물리** — angular_velocity 필드만 존재, 적분 미구현. 관성 텐서 필요.
+- **마찰 (Coulomb)** — 미구현. 물체가 미끄러짐 없이 반발만.
+- **Sequential Impulse 솔버** — 단일 반복 충돌 응답만. 다중 물체 쌓기 불안정.
+- **Sleep/Island 시스템** — 정지 물체 최적화 미구현.
+
 ## 렌더링 한계
 
 - **per-entity dynamic UBO** — 수천 개 이상은 인스턴싱 필요.
diff --git a/docs/STATUS.md b/docs/STATUS.md
index d70b808..a874335 100644
--- a/docs/STATUS.md
+++ b/docs/STATUS.md
@@ -62,6 +62,12 @@
 - voltex_physics: Narrow phase — sphere_vs_sphere, sphere_vs_box, box_vs_box (SAT)
 - voltex_physics: detect_collisions(world) ECS integration
 
+### Phase 5-2: Rigid Body Simulation
+- voltex_physics: RigidBody (mass, velocity, restitution), PhysicsConfig
+- voltex_physics: Semi-implicit Euler integration
+- voltex_physics: Impulse-based collision response + positional correction (Baumgarte)
+- voltex_physics: physics_step (integrate → detect → resolve)
+
 ## Crate 구조
 
 ```
@@ -71,15 +77,15 @@ crates/
 ├── voltex_renderer  — GPU, Mesh, OBJ, Camera, Material, PBR, Shadow, IBL, Sphere
 ├── voltex_ecs       — Entity, SparseSet, World, Transform, Hierarchy, Scene, WorldTransform
 ├── voltex_asset     — Handle<T>, AssetStorage<T>, Assets
-└── voltex_physics   — Collider, ContactPoint, BvhTree, detect_collisions
+└── voltex_physics   — Collider, ContactPoint, BvhTree, RigidBody, detect_collisions, physics_step
 ```
 
-## 테스트: 136개 전부 통과
+## 테스트: 147개 전부 통과
 
 - voltex_asset: 14
 - voltex_ecs: 39
 - voltex_math: 35 (29 + AABB 6)
-- voltex_physics: 25 (collider 2 + narrow 11 + bvh 5 + collision 7)
+- voltex_physics: 36 (collider 2 + narrow 11 + bvh 5 + collision 7 + rigid_body 3 + integrator 3 + solver 5)
 - voltex_platform: 3
 - voltex_renderer: 20
 
@@ -95,7 +101,7 @@ crates/
 - shadow_demo — Directional Light 그림자
 - ibl_demo — Normal map + IBL
 
-## 다음: Phase 5-2 (리지드바디 시뮬레이션)
+## 다음: Phase 5-3 (레이캐스팅)
 
 스펙 참조: `docs/superpowers/specs/2026-03-24-voltex-engine-design.md`