1. Which of Newton's laws of motion accounts for the movement seen in an ice hockey puck sliding at a constant speed across a rink?
2. Which of Newton's laws of motion accounts for the movement seen in a distance runner maintaining their pace in the middle of a race?
3. Which of Newton's laws of motion accounts for the movement seen in dissimilar pitchers with different maximum velocities for their fast balls?
4. Which of Newton's laws of motion accounts for the movement seen in a high jumper’s GRF through takeoff?