Ex Brazil president Lula arrives to testify in corruption probe

The video tutorial covers the concept of speed, questions whether it has increased, and discusses the implications of a new president.

What does the term 'speed' refer to in a general context?

How does the concept of speed apply in different fields such as physics and everyday life?

What could be the implications of asking 'Is it up?' in a conversation?

What qualities do you think a new president should possess?

In what ways can a new president impact the country?