What is the acceleration of a projectile at the highest point of its trajectory (ignoring air resistance)?
A0 m/s²
B9.8 m/s² upward
C9.8 m/s² downward
DIt depends on the launch angle.
Explanation
📌 The only force is gravity, which always acts downward. Acceleration is always 9.8 m/s² downward — even at the highest point where velocity is momentarily zero. Distractor A is the most common CBE error: confusing zero velocity with zero acceleration. B and D reflect misunderstandings.