Carl and juan were playing catch, getting ready for the start of baseball season. carl, who wanted to be the pitcher, was trying out his pitching arm. "here comes a fast ball! " shouted carl. "ouch! " yelled juan. "that ball really hurt when i caught it! " which of the these does not explain, in part, why the fast ball hurt juan's hand.

I would say D because they ball did accelerate but the force on the ball didn't increase because the force is from Juan's hand who is stopping the ball. So, that makes the sentence kind of incomplete and false. The greater acceleration means greater force is true because it will take more strength for the ball to stop. And the rest are saying about the same thing. I hope this helps!