While an object is in projectile motion (with upward being positive)with no air resistance,
A) the horizontal component of its velocity remains constant and the horizontal component of its acceleration is equal to -g.
B) the horizontal component of its velocity remains constant and the vertical component of its acceleration is equal to -g.
C) the horizontal component of its velocity remains constant and the vertical component of its acceleration is equal to zero.
D) the vertical component of both its velocity and its acceleration remain constant.
E) the vertical component of its velocity remains constant and the vertical component of its acceleration is equal to -g.

Question

Quizplus · Accepted Answer

In projectile motion without air resistance, the horizontal component of velocity remains constant because there are no forces acting in the horizontal direction. The vertical component of acceleration is equal to -g (where g is the acceleration due to gravity) because the only force acting in the vertical direction is gravity, pulling the object downward.

While an Object Is in Projectile Motion (With Upward Being