Block and wedge system all details

[smartyrohan12]

Homework Statement

okay this isn't really a question, but i didnt knew where to post it, tell me if it has to be posted somewhere else. a pic of the diagram would help a lot.
A block is kept on the top of a wedge of angle alpha, can u explain what all happens, keeping all surfaces frictionless, what are their velocities and acceleration.

Homework Equations

I don't know

The Attempt at a Solution

i only know that a mgsin(alpha) will act on the block, nothing else..

 

[grzz]

Draw a diagram.
Put in the forces acting on the block.
Resolve forces in components along the direction of motion and perpendicular to this direction.

 

[smartyrohan12]

but i want to know how will the wedge be affected as the surface is frictionless...

 

[grzz]

Draw a diagram and put in all the forces. It is good to make a contribution yourself first in line with the spirit of this forum.