Respuesta :
At the highest point, the ball's acceleration is nonzero, but it's velocity is zero.
What is acceleration?
Any process that changes the velocity is named Acceleration. There are only two ways to accelerate: change your speed or direction since velocity is a speed and a direction. So, Acceleration is the rate of change in velocity.
At the top most point, the velocity is indeed zero. However, the ball changes momentarily after that. If the acceleration was zero, the ball would have had no velocity change and stayed up in the sky forever.
To learn more about acceleration and velocity refer to, https://brainly.com/question/18608559
https://brainly.com/question/20771493
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