Question Detail
Question
An object is thrown vertically upward. At its maximum height, which of the following is true?
Correct Answer
Option B is the correct answer.
Detailed Explanation
At the maximum height, the object momentarily stops before falling back down, so its velocity is zero. Throughout its flight (ignoring air resistance), it is under the constant acceleration due to gravity (g), which is approximately 9.8 m/s² downward and never becomes zero.
Hint
Think about what happens to the object's speed at the very top of its path and what force (and therefore acceleration) is acting on it constantly.