For general projectile motion with no air resistance,the horizontal component of a projectile's velocity
A)remains zero.
B)remains a non-zero constant.
C)continuously increases.
D)continuously decreases.
E)first decreases and then increases.

Question

Quizplus · Accepted Answer

The horizontal component of a projectile's velocity remains a non-zero constant because there is no force acting horizontally to change its velocity. As long as there is no external force acting on the projectile, its horizontal velocity will remain constant throughout its motion.

For General Projectile Motion with No Air Resistance,the Horizontal Component