Hi Drongle McMahon .here the Physics plane collada (dae)file
<?xml version="1.0" encoding="utf-8"?>
<COLLADA xmlns="http://www.collada.org/2005/11/COLLADASchema" version="1.4.0">
<asset>
<contributor>
<author></author>
<authoring_tool>FBX COLLADA exporter</authoring_tool>
<comments></comments>
</contributor>
<created>2012-12-09T06:07:24Z</created>
<modified>2012-12-09T06:07:24Z</modified>
<revision></revision>
<title></title>
<subject></subject>
<keywords></keywords>
<unit meter="0.025400"/>
<up_axis>Z_UP</up_axis>
</asset>
<library_geometries>
<geometry id="Plane001-lib" name="Plane001Mesh">
<mesh>
<source id="Plane001-lib-Position">
<float_array id="Plane001-lib-Position-array" count="12">
-83.284119 78.615768 0.462189
-83.284149 -78.615768 0.462189
-83.284088 78.615768 156.550232
-83.284119 -78.615768 156.550232
</float_array>
<technique_common>
<accessor source="#Plane001-lib-Position-array" count="4" stride="3">
<param name="X" type="float"/>
<param name="Y" type="float"/>
<param name="Z" type="float"/>
</accessor>
</technique_common>
</source>
<source id="Plane001-lib-Normal0">
<float_array id="Plane001-lib-Normal0-array" count="18">
-1.000000 0.000000 0.000000
-1.000000 0.000000 0.000000
-1.000000 0.000000 0.000000
-1.000000 0.000000 0.000000
-1.000000 0.000000 0.000000
-1.000000 0.000000 0.000000
</float_array>
<technique_common>
<accessor source="#Plane001-lib-Normal0-array" count="6" stride="3">
<param name="X" type="float"/>
<param name="Y" type="float"/>
<param name="Z" type="float"/>
</accessor>
</technique_common>
</source>
<source id="Plane001-lib-UV0">
<float_array id="Plane001-lib-UV0-array" count="8">
0.000000 0.000000
1.000000 0.000000
0.000000 1.000000
1.000000 1.000000
</float_array>
<technique_common>
<accessor source="#Plane001-lib-UV0-array" count="4" stride="2">
<param name="S" type="float"/>
<param name="T" type="float"/>
</accessor>
</technique_common>
</source>
<vertices id="Plane001-lib-Vertex">
<input semantic="POSITION" source="#Plane001-lib-Position"/>
</vertices>
<polygons count="2">
<input semantic="VERTEX" offset="0" source="#Plane001-lib-Vertex"/>
<input semantic="NORMAL" offset="1" source="#Plane001-lib-Normal0"/>
<input semantic="TEXCOORD" offset="2" set="0" source="#Plane001-lib-UV0"/>
<p>0 0 0 1 1 1 3 2 3</p>
<p>3 3 3 2 4 2 0 5 0</p>
</polygons>
</mesh>
</geometry>
<geometry id="Plane002-lib" name="Plane002Mesh">
<mesh>
<source id="Plane002-lib-Position">
<float_array id="Plane002-lib-Position-array" count="12">
83.284111 78.615768 0.462189
83.284157 -78.615768 0.462189
83.284081 78.615768 156.550232
83.284126 -78.615768 156.550232
</float_array>
<technique_common>
<accessor source="#Plane002-lib-Position-array" count="4" stride="3">
<param name="X" type="float"/>
<param name="Y" type="float"/>
<param name="Z" type="float"/>
</accessor>
</technique_common>
</source>
<source id="Plane002-lib-Normal0">
<float_array id="Plane002-lib-Normal0-array" count="18">
-1.000000 -0.000000 -0.000000
-1.000000 -0.000000 -0.000000
-1.000000 -0.000000 -0.000000
-1.000000 -0.000000 -0.000000
-1.000000 -0.000000 -0.000000
-1.000000 -0.000000 -0.000000
</float_array>
<technique_common>
<accessor source="#Plane002-lib-Normal0-array" count="6" stride="3">
<param name="X" type="float"/>
<param name="Y" type="float"/>
<param name="Z" type="float"/>
</accessor>
</technique_common>
</source>
<source id="Plane002-lib-UV0">
<float_array id="Plane002-lib-UV0-array" count="8">
0.000000 0.000000
1.000000 0.000000
0.000000 1.000000
1.000000 1.000000
</float_array>
<technique_common>
<accessor source="#Plane002-lib-UV0-array" count="4" stride="2">
<param name="S" type="float"/>
<param name="T" type="float"/>
</accessor>
</technique_common>
</source>
<vertices id="Plane002-lib-Vertex">
<input semantic="POSITION" source="#Plane002-lib-Position"/>
</vertices>
<polygons count="2">
<input semantic="VERTEX" offset="0" source="#Plane002-lib-Vertex"/>
<input semantic="NORMAL" offset="1" source="#Plane002-lib-Normal0"/>
<input semantic="TEXCOORD" offset="2" set="0" source="#Plane002-lib-UV0"/>
<p>0 0 0 1 1 1 3 2 3</p>
<p>3 3 3 2 4 2 0 5 0</p>
</polygons>
</mesh>
</geometry>
</library_geometries>
<library_visual_scenes>
<visual_scene id="RootNode" name="RootNode">
<node id="Plane001" name="Plane001">
<matrix sid="matrix">1.000000 0.000000 0.000000 0.000000 0.000000 1.000000 0.000000 -0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 0.000000 1.000000</matrix>
<instance_geometry url="#Plane001-lib"/>
</node>
<node id="Plane002" name="Plane002">
<matrix sid="matrix">1.000000 0.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 0.000000 1.000000</matrix>
<instance_geometry url="#Plane002-lib"/>
</node>
</visual_scene>
</library_visual_scenes>
<scene>
<instance_visual_scene url="#RootNode"/>
</scene>
</COLLADA>
Here my mesh model Collada (dae) file
<?xml version="1.0" encoding="utf-8"?>
<COLLADA xmlns="http://www.collada.org/2005/11/COLLADASchema" version="1.4.0">
<asset>
<contributor>
<author></author>
<authoring_tool>FBX COLLADA exporter</authoring_tool>
<comments></comments>
</contributor>
<created>2012-12-09T06:07:24Z</created>
<modified>2012-12-09T06:07:24Z</modified>
<revision></revision>
<title></title>
<subject></subject>
<keywords></keywords>
<unit meter="0.025400"/>
<up_axis>Z_UP</up_axis>
</asset>
<library_geometries>
<geometry id="Box001-lib" name="Box001Mesh">
<mesh>
<source id="Box001-lib-Position">
<float_array id="Box001-lib-Position-array" count="24">
-78.740158 -78.740158 0.000000
78.740158 -78.740158 0.000000
-78.740158 78.740158 0.000000
78.740158 78.740158 0.000000
-78.740158 -78.740158 157.480316
78.740158 -78.740158 157.480316
-78.740158 78.740158 157.480316
78.740158 78.740158 157.480316
</float_array>
<technique_common>
<accessor source="#Box001-lib-Position-array" count="8" stride="3">
<param name="X" type="float"/>
<param name="Y" type="float"/>
<param name="Z" type="float"/>
</accessor>
</technique_common>
</source>
<source id="Box001-lib-Normal0">
<float_array id="Box001-lib-Normal0-array" count="108">
0.000000 0.000000 -1.000000
0.000000 0.000000 -1.000000
0.000000 0.000000 -1.000000
0.000000 0.000000 -1.000000
0.000000 0.000000 -1.000000
0.000000 0.000000 -1.000000
0.000000 0.000000 1.000000
0.000000 0.000000 1.000000
0.000000 0.000000 1.000000
0.000000 0.000000 1.000000
0.000000 0.000000 1.000000
0.000000 0.000000 1.000000
0.000000 -1.000000 0.000000
0.000000 -1.000000 0.000000
0.000000 -1.000000 0.000000
0.000000 -1.000000 0.000000
0.000000 -1.000000 0.000000
0.000000 -1.000000 0.000000
1.000000 0.000000 0.000000
1.000000 0.000000 0.000000
1.000000 0.000000 0.000000
1.000000 0.000000 0.000000
1.000000 0.000000 0.000000
1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 1.000000 0.000000
0.000000 1.000000 0.000000
0.000000 1.000000 0.000000
0.000000 1.000000 0.000000
0.000000 1.000000 0.000000
-1.000000 0.000000 0.000000
-1.000000 0.000000 0.000000
-1.000000 0.000000 0.000000
-1.000000 0.000000 0.000000
-1.000000 0.000000 0.000000
-1.000000 0.000000 0.000000
</float_array>
<technique_common>
<accessor source="#Box001-lib-Normal0-array" count="36" stride="3">
<param name="X" type="float"/>
<param name="Y" type="float"/>
<param name="Z" type="float"/>
</accessor>
</technique_common>
</source>
<source id="Box001-lib-UV0">
<float_array id="Box001-lib-UV0-array" count="48">
1.000000 0.000000
0.000000 0.000000
1.000000 1.000000
0.000000 1.000000
0.000000 0.000000
1.000000 0.000000
0.000000 1.000000
1.000000 1.000000
0.000000 0.000000
1.000000 0.000000
0.000000 1.000000
1.000000 1.000000
0.000000 0.000000
1.000000 0.000000
0.000000 1.000000
1.000000 1.000000
0.000000 0.000000
1.000000 0.000000
0.000000 1.000000
1.000000 1.000000
0.000000 0.000000
1.000000 0.000000
0.000000 1.000000
1.000000 1.000000
</float_array>
<technique_common>
<accessor source="#Box001-lib-UV0-array" count="24" stride="2">
<param name="S" type="float"/>
<param name="T" type="float"/>
</accessor>
</technique_common>
</source>
<vertices id="Box001-lib-Vertex">
<input semantic="POSITION" source="#Box001-lib-Position"/>
</vertices>
<polygons count="12">
<input semantic="VERTEX" offset="0" source="#Box001-lib-Vertex"/>
<input semantic="NORMAL" offset="1" source="#Box001-lib-Normal0"/>
<input semantic="TEXCOORD" offset="2" set="0" source="#Box001-lib-UV0"/>
<p>0 0 0 2 1 2 3 2 3</p>
<p>3 3 3 1 4 1 0 5 0</p>
<p>4 6 4 5 7 5 7 8 7</p>
<p>7 9 7 6 10 6 4 11 4</p>
<p>0 12 8 1 13 9 5 14 11</p>
<p>5 15 11 4 16 10 0 17 8</p>
<p>1 18 12 3 19 13 7 20 15</p>
<p>7 21 15 5 22 14 1 23 12</p>
<p>3 24 16 2 25 17 6 26 19</p>
<p>6 27 19 7 28 18 3 29 16</p>
<p>2 30 20 0 31 21 4 32 23</p>
<p>4 33 23 6 34 22 2 35 20</p>
</polygons>
</mesh>
</geometry>
</library_geometries>
<library_visual_scenes>
<visual_scene id="RootNode" name="RootNode">
<node id="Box001" name="Box001">
<matrix sid="matrix">1.000000 0.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 0.000000 1.000000</matrix>
<instance_geometry url="#Box001-lib"/>
</node>
</visual_scene>
</library_visual_scenes>
<scene>
<instance_visual_scene url="#RootNode"/>
</scene>
</COLLADA>