The maximum horizontal range of a rock that is thrown at the same speed but different angles with the horizon and that lands at a level, H, below the initial level occurs when the angle is
A) less than 0$\degree$.
B) 0$\degree$.
C) greater than 0$\degree$ and less than 45$\degree$ actual value depends on the value of H).
D) 45$\degree$,
E) greater than 45$\degree$.

Question

Quizplus · Accepted Answer

The maximum range occurs when the projectile is launched at a 45-degree angle with respect to the horizontal. However, the question specifies that the rock must land at a level below the initial level. This means that the initial height above the ground affects the optimal angle. As the initial height decreases, the optimal angle becomes smaller than 45 degrees. Therefore, the correct answer is "greater than 0 degrees and less than 45 degrees (actual value depends on the value of H)."

The Maximum Horizontal Range of a Rock That Is Thrown °\degree°

The Maximum Horizontal Range of a Rock That Is Thrown $\degree$