Tom ran because he was afraid.
He was afraid of being in court for something that he didn't even do.
.. although he is in court when he gets asked this question.
Tom Robinson replies that he ran because he was scared and panicked. He knew that he would be accused of a crime he did not commit and feared the consequences, especially given the racial prejudice of the town.
When Mayella is on the stand the question Atticus asks that makes her furious is "How?" She has just described how Tom Robinson choked and beat her, and Atticus asks Tom to stand up. This draws the jury's attention to the fact that Tom's left arm is useless, making it highly unlikely he was Mayella's attacker. When Tom stands, Atticus asks Mayella if Tom is the man who attacked. When she responds that he is, Atticus asks, "How?"
This is specific to your particular edition of the book.
Scout asks Atticus what a "whore-lady" is, as she heard it from Francis while they were fighting. She is confused by the term and wants Atticus to explain it to her.
Just about the time Scout decides that she prefers the company of men, Atticus interrupts the meeting with the news that Tom Robinson has been killed in an attempted escape. In the kitchen, Atticus asks Calpurnia to accompany him to give the news to Tom's wife, Helen.
i really think like yeah
Atticus was showing the Ewell was left handed and that he could have beaten Mayella.
Atticus asks Tom to catch a glass cup to test his injured arm's mobility and strength. This incident symbolizes Atticus's respect for Tom's dignity and humanity, challenging racist attitudes that dehumanize black individuals. It also shows Atticus's belief in fairness and justice for all, regardless of race.
Tom is in the Maycomb County Jail during the time that Atticus faces the mob downtown.
He needed Tom to stand up, that way he could show the Jury that Tom could not use his left arm. Earlier Atticus asked Mr. Ewell which hand he wrote with and he asnwered his left. This way Atticus could show the Jury that Tom could not have raped Mayella because he can not use his left arm.
Judge Taylor assigns Atticus to defend Tom Robinson.
Calpurnia's note to Atticus says that Tom Robinson has been given the death penalty and that there is trouble at the jail. She asks him to come to the jailhouse to help protect Tom from a lynch mob.