diff --git a/Code/GamePhysics/GamePhysics.vcxproj b/Code/GamePhysics/GamePhysics.vcxproj
index 06e64fd1..1abcc6f8 100644
--- a/Code/GamePhysics/GamePhysics.vcxproj
+++ b/Code/GamePhysics/GamePhysics.vcxproj
@@ -166,6 +166,8 @@
     <ClInclude Include="Implementation\SimpleRigidBody.h" />
     <ClInclude Include="Implementation\SphericalRigidBody.h" />
     <ClInclude Include="PhysicsAPI.h" />
+    <ClInclude Include="PhysicsFormula-Impl.h" />
+    <ClInclude Include="PhysicsFormula.h" />
     <ClInclude Include="PhysicsStructs-Impl.h" />
     <ClInclude Include="PhysicsStructs.h" />
   </ItemGroup>
diff --git a/Code/GamePhysics/GamePhysics.vcxproj.filters b/Code/GamePhysics/GamePhysics.vcxproj.filters
index 15221691..aa3cbd73 100644
--- a/Code/GamePhysics/GamePhysics.vcxproj.filters
+++ b/Code/GamePhysics/GamePhysics.vcxproj.filters
@@ -42,6 +42,12 @@
     <ClInclude Include="PhysicsStructs-Impl.h">
       <Filter>Header Files\Include</Filter>
     </ClInclude>
+    <ClInclude Include="PhysicsFormula.h">
+      <Filter>Header Files\Include</Filter>
+    </ClInclude>
+    <ClInclude Include="PhysicsFormula-Impl.h">
+      <Filter>Header Files\Include</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="Implementation\PhysicsAPI_Impl.cpp">
diff --git a/Code/GamePhysics/Implementation/PhysicsAPI_Impl.cpp b/Code/GamePhysics/Implementation/PhysicsAPI_Impl.cpp
index 46b3369c..d01d95f7 100644
--- a/Code/GamePhysics/Implementation/PhysicsAPI_Impl.cpp
+++ b/Code/GamePhysics/Implementation/PhysicsAPI_Impl.cpp
@@ -4,7 +4,6 @@
 #include "SphericalRigidBody.h"
 
 using namespace ::Oyster::Physics;
-using namespace ::Oyster::Physics3D;
 using namespace ::Oyster::Math;
 using namespace ::Oyster::Collision3D;
 using namespace ::Utility::DynamicMemory;
@@ -27,31 +26,6 @@ namespace
 	}
 }
 
-Float4x4 & MomentOfInertia::CreateSphereMatrix( const Float mass, const Float radius, ::Oyster::Math::Float4x4 &targetMem )
-{
-	return targetMem = Formula::MomentOfInertia::Sphere(mass, radius);
-}
-
-Float4x4 & MomentOfInertia::CreateHollowSphereMatrix( const Float mass, const Float radius, ::Oyster::Math::Float4x4 &targetMem )
-{
-	return targetMem = Formula::MomentOfInertia::HollowSphere(mass, radius);
-}
-
-Float4x4 & MomentOfInertia::CreateCuboidMatrix( const Float mass, const Float height, const Float width, const Float depth, ::Oyster::Math::Float4x4 &targetMem )
-{
-	return targetMem = Formula::MomentOfInertia::Cuboid(mass, height, width, depth);
-}
-
-Float4x4 & MomentOfInertia::CreateCylinderMatrix( const Float mass, const Float height, const Float radius, ::Oyster::Math::Float4x4 &targetMem )
-{
-	return targetMem = Formula::MomentOfInertia::Cylinder(mass, height, radius);
-}
-
-Float4x4 & MomentOfInertia::CreateRodMatrix( const Float mass, const Float length, ::Oyster::Math::Float4x4 &targetMem )
-{
-	return targetMem = Formula::MomentOfInertia::RodCenter(mass, length);
-}
-
 API & API::Instance()
 {
 	return API_instance;
diff --git a/Code/GamePhysics/Implementation/SphericalRigidBody.cpp b/Code/GamePhysics/Implementation/SphericalRigidBody.cpp
index 364d7454..ce31456e 100644
--- a/Code/GamePhysics/Implementation/SphericalRigidBody.cpp
+++ b/Code/GamePhysics/Implementation/SphericalRigidBody.cpp
@@ -21,7 +21,7 @@ SphericalRigidBody::SphericalRigidBody( const API::SphericalBodyDescription &des
 {
 	this->rigid = RigidBody( Box( desc.rotation, desc.centerPosition, Float3(2.0f * desc.radius) ),
 							 desc.mass,
-							 MomentOfInertia::CreateSphereMatrix( desc.mass, desc.radius ) );
+							 Formula::MomentOfInertia::CreateSphereMatrix( desc.mass, desc.radius ) );
 	this->gravityNormal = Float3::null;
 
 	if( desc.subscription )
diff --git a/Code/GamePhysics/PhysicsAPI.h b/Code/GamePhysics/PhysicsAPI.h
index 84a3d639..6c43a754 100644
--- a/Code/GamePhysics/PhysicsAPI.h
+++ b/Code/GamePhysics/PhysicsAPI.h
@@ -35,20 +35,6 @@ namespace Oyster
 			const float gravity_constant = (const float)6.67284e-11; //!< The _big_G_! ( N(m/kg)^2 ) Used in real gravityforcefields.
 		}
 
-		class PHYSICS_DLL_USAGE MomentOfInertia
-		{
-		public:
-			static ::Oyster::Math::Float4x4 & CreateSphereMatrix( const ::Oyster::Math::Float mass, const ::Oyster::Math::Float radius, ::Oyster::Math::Float4x4 &targetMem = ::Oyster::Math::Float4x4() );
-			
-			static ::Oyster::Math::Float4x4 & CreateHollowSphereMatrix( const ::Oyster::Math::Float mass, const ::Oyster::Math::Float radius, ::Oyster::Math::Float4x4 &targetMem = ::Oyster::Math::Float4x4() );
-
-			static ::Oyster::Math::Float4x4 & CreateCuboidMatrix( const ::Oyster::Math::Float mass, const ::Oyster::Math::Float height, const ::Oyster::Math::Float width, const ::Oyster::Math::Float depth, ::Oyster::Math::Float4x4 &targetMem = ::Oyster::Math::Float4x4() );
-
-			static ::Oyster::Math::Float4x4 & CreateCylinderMatrix( const ::Oyster::Math::Float mass, const ::Oyster::Math::Float height, const ::Oyster::Math::Float radius, ::Oyster::Math::Float4x4 &targetMem = ::Oyster::Math::Float4x4() );
-	
-			static ::Oyster::Math::Float4x4 & CreateRodMatrix( const ::Oyster::Math::Float mass, const ::Oyster::Math::Float length, ::Oyster::Math::Float4x4 &targetMem = ::Oyster::Math::Float4x4() );
-		};
-
 		class PHYSICS_DLL_USAGE API
 		{
 		public:
@@ -436,5 +422,6 @@ namespace Oyster
 }
 
 #include "PhysicsStructs.h"
+#include "PhysicsFormula.h"
 
 #endif
\ No newline at end of file
diff --git a/Code/GamePhysics/PhysicsFormula-Impl.h b/Code/GamePhysics/PhysicsFormula-Impl.h
new file mode 100644
index 00000000..2c97de24
--- /dev/null
+++ b/Code/GamePhysics/PhysicsFormula-Impl.h
@@ -0,0 +1,46 @@
+#ifndef PHYSICS_FORMULA_IMPL_H
+#define PHYSICS_FORMULA_IMPL_H
+
+#include "PhysicsFormula.h"
+#include "OysterPhysics3D.h"
+
+namespace Oyster { namespace Physics { namespace Formula
+{
+	namespace MomentOfInertia
+	{
+		inline ::Oyster::Math::Float4x4 CreateSphereMatrix( const ::Oyster::Math::Float mass, const ::Oyster::Math::Float radius )
+		{
+			return ::Oyster::Physics3D::Formula::MomentOfInertia::Sphere(mass, radius);
+		}
+
+		inline ::Oyster::Math::Float4x4 CreateHollowSphereMatrix( const ::Oyster::Math::Float mass, const ::Oyster::Math::Float radius )
+		{
+			return ::Oyster::Physics3D::Formula::MomentOfInertia::HollowSphere(mass, radius);
+		}
+
+		inline ::Oyster::Math::Float4x4 CreateCuboidMatrix( const ::Oyster::Math::Float mass, const ::Oyster::Math::Float height, const ::Oyster::Math::Float width, const ::Oyster::Math::Float depth )
+		{
+			return ::Oyster::Physics3D::Formula::MomentOfInertia::Cuboid(mass, height, width, depth);
+		}
+
+		inline ::Oyster::Math::Float4x4 CreateCylinderMatrix( const ::Oyster::Math::Float mass, const ::Oyster::Math::Float height, const ::Oyster::Math::Float radius )
+		{
+			return ::Oyster::Physics3D::Formula::MomentOfInertia::Cylinder(mass, height, radius);
+		}
+
+		inline ::Oyster::Math::Float4x4 CreateRodMatrix( const ::Oyster::Math::Float mass, const ::Oyster::Math::Float length )
+		{
+			return ::Oyster::Physics3D::Formula::MomentOfInertia::RodCenter(mass, length);
+		}
+	}
+
+	namespace CollisionResponse
+	{
+		inline ::Oyster::Math::Float Impulse( ::Oyster::Math::Float e, ::Oyster::Math::Float mA, ::Oyster::Math::Float gA, ::Oyster::Math::Float mB, ::Oyster::Math::Float gB )
+		{
+			return (e+1) * (mB*gA - mA*gB) / (mA + mB);
+		}
+	}
+} } }
+
+#endif
\ No newline at end of file
diff --git a/Code/GamePhysics/PhysicsFormula.h b/Code/GamePhysics/PhysicsFormula.h
new file mode 100644
index 00000000..c015e571
--- /dev/null
+++ b/Code/GamePhysics/PhysicsFormula.h
@@ -0,0 +1,27 @@
+#ifndef PHYSICS_FORMULA_H
+#define PHYSICS_FORMULA_H
+
+#include "OysterMath.h"
+
+namespace Oyster { namespace Physics { namespace Formula
+{
+	namespace MomentOfInertia
+	{
+		::Oyster::Math::Float4x4 CreateSphereMatrix( const ::Oyster::Math::Float mass, const ::Oyster::Math::Float radius );
+		::Oyster::Math::Float4x4 CreateHollowSphereMatrix( const ::Oyster::Math::Float mass, const ::Oyster::Math::Float radius );
+		::Oyster::Math::Float4x4 CreateCuboidMatrix( const ::Oyster::Math::Float mass, const ::Oyster::Math::Float height, const ::Oyster::Math::Float width, const ::Oyster::Math::Float depth );
+		::Oyster::Math::Float4x4 CreateCylinderMatrix( const ::Oyster::Math::Float mass, const ::Oyster::Math::Float height, const ::Oyster::Math::Float radius );
+		::Oyster::Math::Float4x4 CreateRodMatrix( const ::Oyster::Math::Float mass, const ::Oyster::Math::Float length );
+	}
+
+	namespace CollisionResponse
+	{
+		::Oyster::Math::Float Impulse( ::Oyster::Math::Float coeffOfRestitution,
+										::Oyster::Math::Float massA, ::Oyster::Math::Float momentumA,
+										::Oyster::Math::Float massB, ::Oyster::Math::Float momentumB );
+	}
+} } }
+
+#include "PhysicsFormula-Impl.h"
+
+#endif
\ No newline at end of file