You throw a basketball by exerting a force of 20 newtons. According to Newton's third law, there is another 20 -newton force created in the opposite direction. If there are two equal forces in opposite directions how does the ball accelerate ?

Abaseball is thrown from the outfield toward the catcher. when the ball reaches its highest point, which statement is true? (a)its velocity is not zero, but its acceleration is zero. (b) its velocity and its acceleration are both zero. (c) its velocity is perpendicular to its acceleration. (d) its acceleration depends on the angle at which the ball was thrown. (e) none of the above statements are true.