This relates to Newton's 2nd law which states that acceleration occurs if there are two unbalanced forces. While the ball is being thrown, still in the pitchers hand, the baseball accelerates because the force applied, by the pitcher, has no opposite horizontal force meaning, there is an unbalanced force which causes the acceleration of the ball. There is also the force of earth pushing down, and the force of the surface in which the ball lies in, hand, pushing up; however, these two forces balance out. Newton's 2nd law really does apply and help explain many things around us. (Note, this description was a description of the ball while it is in the pitchers hand and being pulled back).
BY: Wellington Cordova
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