Which of the following statements is not true of a projectile moving against negligible air resistance near the surface of Earth?
A) The horizontal velocity is constant.
B) The vertical acceleration is constant.
C) The horizontal displacement is directly proportional to the time of flight.
D) The vertical velocity at any given time is independent of the angle of projection.
E) The horizontal acceleration is constant.

Question

Quizplus · Accepted Answer

The vertical velocity at any given time is not independent of the angle of projection. The vertical velocity is a combination of the initial velocity and the acceleration due to gravity, which is dependent on the angle of projection. The greater the angle of projection, the greater the initial vertical velocity and the greater the vertical acceleration due to gravity.

Which of the Following Statements Is Not True of a Projectile