# Which of the following angles will enable a projectile to reach the highest possible height?

**Question: Which of the following angles will enable a projectile to reach the highest possible height?**

The optimal angle for a projectile to reach the highest possible height is 90 degrees, as this would direct all the projectile's initial kinetic energy into maximizing its height rather than its range. However, in practical scenarios where range is also a factor, the angle of 45 degrees is often considered optimal in a vacuum because it balances the vertical and horizontal components of the projectile's velocity, allowing it to reach a significant height while also covering the greatest possible distance. It's important to note that these angles assume there is no air resistance and that the launch and landing heights are the same. When air resistance is considered, or when the launch and landing heights differ, the optimal angle can change. For instance, with air resistance, the optimal angle for maximum range is less than 45 degrees. Similarly, if a projectile is launched from a higher elevation than its landing point, a lower launch angle might be more suitable to maximize the height reached during its trajectory. The physics behind projectile motion is governed by the principles of kinematics, and the optimal angle can be derived using calculus and the equations of motion.

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