QUESTION 3 Use the bamboo-framed bike to describe Newton's second law of motion and the relationships that exist between force, mass, and acceleration

evidence and logical support is essential for a scientist to do in order to maintain credibility. this is because no one can believe without any logic and without any evidence.hence a scientist can maintain credibility by proving himself and by answering logically so experiments prove very beneficial. logical hypothesis give conclusion which is acceptable. therefore, there are two main factors to maintain credibility by a scientist is evidence and logical support.

yes, because even though a theory has a  lot of evidence to support it, it is not always true