Please choose the correct answer to the question: Sarah has one piece of wood that is smooth and polished and another that is rough and unfinished. Which of the following is true?

Answer1: both pieces of wood will create the same amount of friction Answer2: the unfinished wood will generate more heat than the other while rubbed over the floor Answer3: the rough wood will more easily move when rubbed over the tile than the finished wood. Answer4: the finished wood will generate more heat when it is rubbed back and forth over a tile floor.

Answer format: answer1/answer2/answer3/answer4
Answer: answer2