How do Trinitarians reconcile Jesus is a spirit? From my understanding of the Trinity (please correct me if I am wrong), the Trinity is God the Father, Jesus Christ, and the Holy Ghost as three separate beings (or personalities) but one God. They also are a spirit so they can be everywhere and are not confined to one place. Working with my understanding, I will proceed with my question.

In the New Testament we have a record of the physical birth of Christ, His ministry, and His death. We also read concerning His resurrection, or the rejoining of His spirit and body. 

If Jesus Christ is a spirit in the Trinity, how do the Trinitarians reconcile this if the New Testament records His appearance with a physical body after the Resurrection?

-- Please correct my understanding of the Trinity if it is incorrect.
Trinitarians believe that Jesus being human does not contradict his status as God (or as the Spirit).
Even though Jesus is God, he made himself into physical human being, and through this he was able to experience life fully as a man.

Philippians 2:5-8 KJV Let this mind be in you, which was also in Christ Jesus: Who, being in the form of God, thought it not robbery to be equal with God: But made himself of no reputation, and took upon him the form of a servant, and was made in the likeness of men: And being found in fashion as a man, he humbled himself, and became obedient unto death, even the death of the cross.
John 1:14-15 ESV And the Word became flesh and dwelt among us, and we have seen his glory, glory as of the only Son from the Father, full of grace and truth. (John bore witness about him, and cried out, “This was he of whom I said, ‘He who comes after me ranks before me, because he was before me.’”)

Yet at the same time, Jesus was fully God.

Hebrews 2:9-10 ESV But we see him who for a little while was made lower than the angels, namely Jesus, crowned with glory and honor because of the suffering of death, so that by the grace of God he might taste death for everyone. For it was fitting that he, for whom and by whom all things exist, in bringing many sons to glory, should make the founder of their salvation perfect through suffering.