Find the Displacement

A block slides 30 m at a constant velocity of 20 m/s.
How much time did the trip take?

The trip time taken by the box is 1.5 sec.

Explanation:

Given:

                                       distance(d) = 30 m

                                        Velocity(v) = 20 m/s

By using formula:

                                    Velocity =

                                        or, 20 =

                                       or, time(t) =

                                     ∴ time (t) = 1.5 sec

Hence the the block took 1.5 sec to slide 30 m.

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