Final answer:
A large bearing change decreases range and can increase the risk of collision because it affects how the relative motion between two objects is perceived, making it difficult to notice the closing distance between them.
Step-by-step explanation:
The correct answer is that a large bearing change in navigation can significantly decrease the range of detection and may increase the risk of collision. This is because bearing changes influence the relative motion between two objects. For example, two ships or aircraft heading towards each other at a slight angle may only appear to have a small lateral movement, making it challenging to notice the closing distance. However, a large change in bearing means the objects are moving more across each other's path than along it, making the closing speed less noticeable and possibly leading to a last-minute realization of the impending collision risk. In navigation, it's essential to carefully monitor bearing changes, range distance, and the rate of closure to avoid collisions. This holds especially true with the varying speeds in aircraft or ship travel, where time and distance to react can significantly decrease as the range shrinks.
In physics, when a large bearing change is made, the range will decrease and there is an increased risk of collision.
This is because when a large bearing change is made, it affects the direction and speed of an object, such as a moving vehicle. If the bearing change is significant, it can cause the object to move closer to another object or change its course, increasing the risk of collision. For example, if a plane changes its bearing suddenly and by a large angle, it can lead to a collision with another plane or obstacle.