Need Help Please

[Faiza]

A block is held in place on a frictionless incline by a massless string. The string is horizontal. I have to sketch a free body diagram for the block showing all the forces exerted on the block.

[BLaH!]

Check out your physics book to see what the forces look like on a block on an inclined plane (with no string attached). Once you add in the force from the string you will have a force in the horizontal direction (because the string is horizontal) pulling away from the block.