...how it works and 
Apple Macbook Pro 15" Core Duo 2 GHz Parts/Repair
Dropped my MacBook – how much to fix?
I have had it for about 3 years now and today I accidentally dropped it. The outside is completely fine, you can't tell there is anything wrong with it just by looking at it but when I try to turn it on a folder and question mark just blinks on the screen. Also, when I tilt it, I can hear the parts inside moving around. =(
yeah, I opened it up... and its definitely the hard drive, I'm definitely not buying it from apple its too expensive
thanks =)
u probably damaged your hard drive. hard drives usually cost around 200 to 300 dollars in apple
u cant really know how much will it cost until u take it to the store and they will identify the damaged parts
No one can answer that question except a tech at the Apple Store. It may not be a big deal, just something that came loose.