Tranh slowed his skateboard as he
approached the street. He went from 8 m/s
to 2 m/s in a period of 3 seconds.
1. Is he accelerating or decelerating?
2. What is the value? (include units)

Explanation:

Given parameters:

Initial velocity  = 8m/s

Final velocity  = 2m/s

Time taken  = 3seconds

Unknown and solution:

1. Is he accelerating or decelerating?

Tranh is obviously decelerating in this period. This is negative form of acceleration in which the speed reduces as the body comes to a stop.

Deceleration is a negative change in velocity with time i.e a body is reducing its velocity as time is changing.

2. What is the value?

 Mathematically;

          Deceleration  =

         Deceleration  =

                                  = -2m/s²

as we probably am aware that our atmosphere or air have various levels, each level has different gasses, and each gas has another porousness. at the point when the light originates from lower porousness to higher penetrability, it alters its course. with the goal that implies that when the light originates from the moon to the earth, it alters it's course a lot more occasions. it essentially implies that the state of the light piece of the moon is changed on the earth.

not copied too! hope this !

joke:

h o h o hope you have a merry christmas!

causes

fossil fuels burn

cities become more industrialized

human population grows worldwide