Please answer the following question: Question: Maddy is playing with her new puppy and rolls a rubber ball for it. The rubber ball moves slowly over the grassy yard, but speeds up when it rolls onto the tile sidewalk. The rubber ball sped up on the sidewalk because it had (A) less resistance (B) more resistance. Do not use A and B to answer the question but instead, choose between "grassy yard" and "tile sidewalk".
Answer:
grassy yard