[ ] is the displacement of an object during a specific unit of time

whats the answer?

Velocity is the displacement of an object during a specific unit of time

the word that best describes martin luther king jr.'s tone in the video is dignified

martin luther king, jr. was a social activist and baptist minister who played a key role in the american civil rights movement from the mid-1950s until his assassination in 1968. the video shows his manner and attitude having or showing a composed or serious manner that is worthy of respect so dignified is the correct answer

force tends to be low and long diustance masses are high