Which of the curves on the graph below best represents the verticle component v_y versus t for a projectile fired at an angle of 45 above the horizontal? A) OC B) DE C) AB D) AE E) AF

Question

Quizplus · Accepted Answer

The vertical component of a projectile fired at an angle of 45 degrees above the horizontal will be equal to the initial velocity (v0) times the sine of the angle, which is v0/√2. This means that the vertical component of the projectile's velocity will be constant throughout its motion, and will only be affected by gravity. Curve DE on the graph shows a constant value for the vertical component, so it is the best choice.

Which of the Curves on the Graph Below Best Represents