A shop vac works the best to remove any water in the tub, and or, on the floor.
1. Unplug the machine.
2. Tilt the machine back and support it, either by using a block of wood or by leaning it against the wall.
3. Remove the belt from the underside of the machine.
4. Spin all three pulleys by hand an check how they feel and sound. ( the large pulley in the center is your thrust bearing, clockwise for spin, counter clockwise for agitate.
If you can't determine by spinning one of the pulleys what the problem is, you can rule the motor out by, leaving the belt OFF, and setting the machine back down to see if it still hums in spin or not.
At this point if you still can't see anything wrong, Re-install the belt, and with the front cover off, watch for either the leak or malfunction.
I would guess the your pump is shot, or something caught inside of it. These pumps are notorious for the pulley to unseat off of the pump impeller shaft.
Let us know what you find, we would be glad to help you further if need be.