Here’s how to use the bullet physics rigid body feature integrated to Blender since 2.66:
First add a basic plane so that our cube has something to collide with. Then select your object and go to the physics button. Turn on rigid body for the object. If you press alt+A the animation will play back and the cube will fall down. Next select the ground plane and turn on rigid body for it too. Then make it a passive object. Now the cube collides with the plane. Thanks for reading and see you next time at OneMinuteVideoTutorials.com!