When analyzing the motion of a projectile near Earth’s surface with air resistance…
PHYSICS · Single correct · AP · Physics 1: Algebra-based · Kinematics · Kinematics
Problem
When analyzing the motion of a projectile near Earth’s surface with air resistance neglected, which of the following statements about the horizontal component of the projectile’s motion is correct?
(a) Its horizontal velocity decreases linearly because gravity acts downward.
(b) Its horizontal velocity is zero at the top of its trajectory because the projectile momentarily stops there.
(c) Its horizontal velocity remains constant because the horizontal acceleration is zero.
(d) Its horizontal velocity gradually decreases as kinetic energy is converted into gravitational potential energy.