For general projectile motion, the horizontal component of a projectile's accelerationGroup of answer choicescontinuously decreases.is zero.remains a non-zero constant.any of the above, depending on position.continuously increases.

For general projectile motion, when the projectile is at the highest point of its trajectoryGroup of answer choicesits acceleration is zero.none of theseits velocity is perpendicular to the acceleration.the horizontal component of its velocity is zero.its velocity and acceleration are both zero.the horizontal and vertical components of its velocity are zero.

In projectile motion the horizontal component of velocity: a. Remains constant b. Decreases with time c. Changes uniformly d. Increases with time

While an object is in projectile motion (with upward being positive) with no air resistanceGroup of answer choicesthe vertical component of its velocity remains constant and the vertical component of its acceleration is equal to -g.none of thesethe vertical component of both its velocity and its acceleration remain constant.the horizontal component of its velocity remains constant and the vertical component of its acceleration is equal to -g.the horizontal component of its velocity remains constant and the horizontal component of its acceleration is equal to -g.the horizontal component of its velocity remains constant and the vertical component of its acceleration is equal to zero.

Which of the following statements is true for the acceleration of the projectile (of the previous question)?Group of answer choicesIt is zero in horizontal and g downward in vertical directionIt is g downward in both horizontal and vertical directionsIt is g downward in horizontal direction and zero in vertical directionIt is zero in horizontal and g upward in vertical directionIt is zero in both horizontal and vertical directions

A projectile is launched from the roof of a building. Which of the following statements is true for its motion  (ignore air resistance)?Group of answer choicesIts horizontal velocity is constant but the vertical velocity changes with timeBoth its horizontal and vertical velocities are constantBoth its horizontal and vertical velocities are changing with timeIts horizontal velocity changes with time but the vertical velocity remains constant.Correct answer is not in the list