not sure what grade your child is in, but...
When D was younger, it wasn't that long , but he did a lot of homework in the car.
This past 2 years, he had an hour commute each way. 8th grade was fine. Not much homework, and he did it at school for the most part. Freshman year got harder. He did some in the car, but he also had an off period where he did the majority of his work. He would leave for school at 7am, get home at 3:15, leave again at 4 for gym, get home at 10. Dinner was in the car. Homework was done in the off period, in the car, and sometimes after he got home from school and/or gym. It was tough. He did not get adequate rest. He slept in teh car when he could. But he was sick a lot last year.
This year, he will leave school at lunch and practice from 2-6. Then he will be home at a decent hour for dinner and schoolwork.