Physics Baseball: Home Run


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In Baseball, a home run is when a batter hit the ball and returns home safely. What needs to be done to hit a home run? The batter needs to hit the ball far enough. There are two factors to help add distance, the mass of the bat and the speed of the swing. The mass of the bat can raise batted ball speed (BBS), which adds distance to a hit. But the swing speed can affect BBS more dramatically.

A bat vibrates at multiple frequencies when it collides with a ball. According to some research, doubling the weight of a 20-ounce wood bat can raise a BBS of 68.5 mph to 80.4 mph -- a 17.3 percent increase. “But Daniel Russell, a professor at Kettering University in Michigan, found that doubling the swing speed of a 30-ounce bat could raise a BBS of 62 mph to 83.8 mph -- a 35.1 percent increase.
In terms of turning a hit into a homer: Against a 94-mph fastball, every 1-mph increase in swing speed extends distance about 8 ft.” (popularmechanics.com)

BUT FIRST, MAKE SURE YOU DON’T MISS THE BALL.