Hi guys 
I am planning on a project, that includes a Simulation.
That Simulation includes normal physics, rotations, drops and an environment.
My questions are:
Is that even possible for a newbie in Unity3D ?
Are there any tutorials on how I could do this ?
You will need some programming skills if you want your simulation to do anything but let the physics engine run, given some starting conditions.
That being said, you CAN setup an environment (using no code), with “physical” objects, of varying size, shape, mass, friction and even bounciness (elasticity of collisions). You can also specify the direction and strength of gravity. Then you can click the play button, and watch the physics work it’self out.
As Xephex mentioned in his answer, click the “Learn” link at the top of the page, and select tutorials. The “documentation” section (rather than tutorials) comes in two sections, one for how to use stuff in the Unity editor, and another on the class libraries used for coding (there is a link at the top of the documentation pages to switch between the two).
For subjects, I suggest you concentrate on “RigidBody” and “colliders”. You may also want to look at “meshes” since this is how the shape of objects are defined (note: the physics engine does have some restrictions on how it works with shapes).
I thought these were helpful: 2d Physics Mobile Game - YouTube
If you need help with something specific look on the Learn section on this page at the top. Loads of video tutorials there.