Which of the following statements is not true of a projectile moving near the surface of the earth against negligible air resistance?
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 dependent on the angle of projection. For example, if the projectile is launched at an angle of 45 degrees, the initial vertical velocity will be equal to the initial horizontal velocity. If the angle of projection is changed, the initial vertical velocity will change accordingly.

Which of the Following Statements Is Not True of a Projectile