Yes I think so and I'm a Kakashi fanboy
1. As we all know Obito has his sharingan in his right eye plus he has a MS
He should be able to use Tsukuyomi because it's a right eye technique. Plus Kakashi was badly injured when Itachi used it on him. He shouldn't waste a lot of chakra since he has Senju DNA so Obito could've won the fight.
What do you think?