A quarterback back pedals 2.5 meters northward and then
runs 6.8 meters southward.

The travels is 9.3 and displacement of 4.3 meters

Explanation:

The computation of distance and displacement is shown below:-

Distance = Northward meters + Southward meters

= 2.5 meters + 6.8 meters

= 9.3 meters

Displacement= Final - Initial distance

= 6.8 meters - 2.5  meters

= 4.3 meters

Direction→southward

Here direction is going towards the southwards as southwards distance in higher than the northward distance of displacement is southward.

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

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