You need more muscle. To throw a baseball harder, you need more muscle so that the weight of the baseball is more off-set by the arm, so the ball is able to go faster.
You need more muscle. To throw a baseball harder, you need more muscle so that the weight of the baseball is more off-set by the arm, so the ball is able to go faster.
You need more muscle. To throw a baseball harder, you need more muscle so that the weight of the baseball is more off-set by the arm, so the ball is able to go faster.