Frank stands still while throwing a dart toward a target with a speed of 25 meters per second What is the speed of the dart observed by Frank compared to the speed observed by a stationary observer?

Frank is standing still, so he and the stationary observer are at rest relative to each other. Therefore, they measure the dart’s speed as the same: 25 meters per second. The correct choice is “The speed is 25 meters per second for both people.”

AI-written and checked against the verified answer.