A baseball is thrown straight upward. What is the ball’s acceleration at its highest point?

(A) 0
(B) \frac{1}{2}g, downward
(C) g, downward
(D) \frac{1}{2}g, upward
(E) g, upward
  1. Correct Answer: C


    The baseball is still under the influence of Earth’s gravity. Its acceleration throughout the entire flight is constant, equal to g downward.

Test ID: 1473
Source: SAT Physics Practice Test