FBD - free body diagram, is a pictorial representation often used by physicists to show all contact and non-contact forces acting on the given free body (wikipedia).

Break the object down to the forces present and the answer is obvious. I have not yet seen a FBD presented by the "will not take off crowd".

How often do you get to discuss physics? It's fun, for the nerds of the forum like me. Brings me back to the hundreds of FBDs I had to come up with for physics I and II back in college. Damn some of those were hard; oh the memories...