Here's why:
* Action and forward movement: It suggests a force pushing something forward, implying progress, advancement, and momentum.
* Energy and drive: It evokes a sense of energy and determination, often associated with overcoming obstacles and achieving goals.
* Positive outcomes: Propelled objects are typically going somewhere beneficial or desirable, making it a word that is often linked to success and achievement.
However, the connotation of "propel" can shift depending on the context:
* Negative connotation: It can be used in a negative context if the force is harmful or uncontrollable, as in "The hurricane propelled debris towards the shore."
Overall, "propel" is a word that is usually associated with positive qualities, but its connotation can be influenced by the specific context in which it's used.