Answer the following question given this paragraph: Tennis is played on a variety of court surfaces: grass, clay, hardcourt, and even carpet. Players know that matches on different surfaces are distinctly different games. The ball bounces differently, and shoes slip on some surfaces but stick on others. These differences are a result of friction. Q: What force explains why a tennis ball bounces differently on different surfaces, and shoes slip on some surfaces but stick on others? Choices: - kinetics - vibration - temperature - friction A:
Answer:
friction