the velocity of a car changes from 20 m/s east to 5 m/s east in 5 seconds. What is the acceleration of the car?

3 m/s²

Explanation:

Acceleration = Change in velocity/ time

= (20 - 5) / 5

= 3 m/s²

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