What is the angle maximizing the throwing distance?
A 45° angle is the ideal throwing angle for maximizing distance. However, throwing distance depends on the object, and other factors like air resistance.
So is there an empirical throwing angle for common projectiles such as arrows, since factors like air resistance seem to have a large effect.
The concept of 45 degrees being the ideal throwing angle is a simplified rule of thumb that is often taught in introductory physics classes. However, it is important to note that this angle is not universally applicable to all types of projectiles or throwing scenarios.

When considering the ideal throwing angle, it is important to take into account a variety of factors that can impact the trajectory of the projectile, including air resistance, velocity, and the shape and weight of the object being thrown. In some cases, a different angle may be more optimal for achieving maximum distance or accuracy.

For example, the optimal angle for throwing a baseball may be closer to 30 degrees, as this angle provides the right balance between maximizing the distance and minimizing the time the ball spends in the air. On the other hand, throwing a discus or shot put may require a different angle, depending on the weight and shape of the object.

In terms of empirical studies on throwing angles, research has shown that the ideal angle can vary widely depending on the specific projectile and throwing scenario. For example, one study published in the Journal of Experimental Biology found that the optimal angle for throwing a spear varied between 20-45 degrees, depending on the weight and length of the spear.

Therefore, it is important to take a more nuanced approach when determining the ideal throwing angle for a particular projectile, taking into account a variety of factors and potentially conducting empirical testing to determine the optimal angle in a given scenario. It is also worth noting that while achieving the perfect angle may not always be possible, practicing and refining throwing technique can help to improve accuracy and distance regardless of the angle used.