1. The problem statement, all variables and given/known data okay this isnt 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. 2. Relevant equations I dont know 3. The attempt at a solution i only know that a mgsin(alpha) will act on the block, nothing else..