Do you have access to another computer?
If so probably the best option is to buy a "caddy" to install the laptop hard drive in... then plug this into the other computer and copy the files that way.
The danger/possibility/probability is that the hard drive itself has got damaged in the fall, which might make getting your data from it an issue anyway!
Another option, that will help to prove if they are accessible, if you have another computer, is to download a version of linux, such as Linux mint and install it onto a USB drive, (or burn a DVD)...
Then use the USB drive, (or DVD), to boot the laptop. The laptop should boot from either of these methods without needing the internal hard drive... once it has booted you can then see if you can read your data, and may even be able to copy it onto your spare hard drive using linux without needing a "caddy"
I hope that makes sense. It really isn't difficult. I just hope that your laptop hard drive is still functioning!