This movie is about a sport agent,
JB Bernstein and his friend who want to find a few talented people in baseball
game to include them in the professional league.
There are a lot of baseball games'
scenes in this movie. So, I would like to relate the baseball game and physics
concept. Based on my observation, two of physics concept in the baseball game
are the momentum between the bat and ball and the trajectory of the baseball.
First of all, there is an elastic
momentum between ball and the bat during the hit. Elastic momentum is defined
as total momentum initial is equal to the total momentum final. I observed that
bat performance depends on the interplay of the elasticity of the ball-bat
collision, the inertial properties of the ball and bat, and the bat swing
speed.
Next, I realized that the
performance of the baseball game also depends on the flight of the baseball. Mistake
on the flight of the baseball may cause trajectory of the batted ball sliced toward
right field. In an ideal world, all baseballs would land at the same place. But,
there is great variation in the distance, depending not only on the type of
baseball (NCAA, MiLB, MLB) but even which baseball of a given type. An
important conclusion is that variation in fly ball distance is due much more to
ball-to-ball variation in the drag (for example, due to small differences in
surface roughness) than to variation in spin.
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