Hi there remjid,
Unfortunately, it is highly probable that the drive has sustained some damage from the fall. If you have really important data stored over there, I would suggest you to contact a data recovery company. If you don't want to go with that option, you will need to attach the drive to another, working computer as a secondary drive and use some data recovery tool.
As for the other drive, you can't really expect it to boot, as it has no OS installed on it.
Cheers,
D_Know_WD
