Kinematics

 Kinematics is the study of motion. These pictures of my brother relates to Kinematics because he is creating motion when he throws the baseball. In baseball, a pitcher throws a ball to the catcher and the batter of the opposing team has to hit it. The velocity of the pitch (or how fast the ball goes) depends on how hard the pitcher throws it. With physics you can calculate how fast the ball is going. The formula for average velocity is displacement*elapsed time. So if my brother was pitching from a mound that was 60.5 feet away from home plate and it took the ball 3.8 seconds to get there, I can use the formula average speed = displacement*elapsed time to figure out that he throws around 70 miles per hour.