Question

For general projectile motion, which of the following best describes the horizontal component of a projectile's acceleration? Assume air resistance is negligible.
(A) The horizontal component of a proje acceleration remains a nonzero constant
(B) The horizontal component of a proje acceleration initially decreases and then increases.
(C) The horizontal component of a proje acceleration continually decreases
(D) The horizontal component of a proje acceleration continually decreases.
(E) The horizontal component of a projectile's acceleration is zero.

Answer 1

Answer:

E ) The horizontal component of a projectile acceleration is zero.

Explanation:

In case of a projectile , force of gravity acts in vertically downward direction so acceleration will act in vertically downward direction . Its direction never changes during course of its journey. So horizontal component of acceleration will always be zero at all points of its journey.