How did jesus die on a cross?

I have learned this at church long ago. It was terribly painful. They had whips, and they ripped into his flesh. It hurted so bad, and he also had it hands and feet NAILED to the cross, putting excruciating pain into his feet and hands. Keep in mind, that they are also whipping his flesh out, streams of blood dripping down. Scraping and scratching, I bet if you were there, you wouldn't have seen so much blood on the cross, the ground, and mostly, his body.