[broken image link] Hello everybody. Here I have attached a free body diagram of a mass located on an incline plane. My question is specifically regarding the angles... why are they are equal to eachother? How can i go about determining different angles of components and such when dealing with inclines... it is confusing me. Any general help would be greatly appreciated.
The answer involves identifying complimentary angles in right triangles. And that the red and green triangles are similar. Please Register or Log in to view the hidden image!