A train traveling at a constant speed

[sugarntwiligh]

Homework Statement

A train traveling at a constant speed rounds a curve of radius 200 m. A chandelier suspended from the ceiling swings out to an angle of 17.0° throughout the turn. What is the speed of the train?

I am confused about the orientation of the chandelier to the turn and how it impacts velocity, especially from where my unit of time is. I posted a problem like this earlier for a homework problem and got no response so I got it wrong. Now, it came up again in the take home, so I am really screwed.

 

[LowlyPion]

Homework Statement

A train traveling at a constant speed rounds a curve of radius 200 m. A chandelier suspended from the ceiling swings out to an angle of 17.0° throughout the turn. What is the speed of the train?

I am confused about the orientation of the chandelier to the turn and how it impacts velocity, especially from where my unit of time is. I posted a problem like this earlier for a homework problem and got no response so I got it wrong. Now, it came up again in the take home, so I am really screwed.

Normally the chandelier hangs straight down.
What force makes it sway from the vertical?

Won't that force's relationship with gravity cause the sway of 17 degrees?
And what is the formula for that force that causes it to sway outward?