A projectile is launched on level ground with an initial speed $$\(v_{0}\)$$ and angle of elevation $$\(\theta\)$$. All of the following statements concerning the projectile right before it lands are correct except
A.
The acceleration is equal to \(g\) downward.
B.
The power exerted by the gravitational force is maximized.
C.
The time the projectile was in the air is equal to \(2 v_{0} \sin \theta / g\).
D.
The projectile has the same kinetic energy as when it was launched.
E.
The projectile has the same velocity as when it was launched.
Exam No：AP Physics C Practice Test Year：2024 Question No：17
Answer:
E
Knowledge points:
1.2 Kinematics: Motion in Two Dimensions
Solution:
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