Which describes the average velocity of a unicycle going around in circles? O A. The total displacement divided by the time.
B. The average acceleration divided by the time.
O C. Every time the unicycle returns to its starting point, the average
velocity equals zero.
O D. The slope of the acceleration vs. time graph.

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.