A projectile is launched with an initial velocity of 80 m/s at 30° above the horizontal.Neglecting air,what is horizontal component of the projectile's acceleration? A)80 m/s² B)40 m/s² C)9.8 m/s² D)0 m/s² E)69 m/s²

Question

Quizplus · Accepted Answer

The horizontal component of a projectile's acceleration is always zero, since there is no force acting in the horizontal direction (assuming negligible air resistance). The only force acting on the projectile is its weight, which acts vertically downward and causes the projectile to accelerate downward at a rate of 9.8 m/s^2. However, this acceleration has no horizontal component. Therefore, choice D is the correct answer.

A Projectile Is Launched with an Initial Velocity of 80