Two projectiles are in flight at the same time. The acceleration of one relative to the other: A) is always 9.8 m/s² B) can be as large as 19.8 m/s² C) can be horizontal D) is zero E) none of these

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Quizplus · Accepted Answer

The acceleration of each projectile is solely determined by gravity and air resistance, which are the same for both projectiles (assuming they are in the same location and at the same altitude). Therefore, their acceleration relative to each other is zero.

Two Projectiles Are in Flight at the Same Time