Question: ab exercises that are easy on the neck?
Answer: Bent-Knee Reverse Crunch. A good starter abdominal exercise for someone with a neck injury is the bent-knee reverse crunch because it doesn't require any upper body work other than core contraction to stabilize the body. ... 
Raise Your Legs. ... 
Stand for Alternating Knee Raises. ... 
Do the Plank. ... 
Perform the Abdominal Crunch.