A 45 kg student rides an elevator for 20 seconds. On the graph, the student's velocity is tracked over time. A. Write a narrative describing the student's motion for the entire trip.
B. Make a force body diagram for the following times, t = 2s, 7s, 13s, 19s.
C. The student rides the elevator while standing on a spring scale. What will the spring scale display at the following times t =2s and 7s. hi

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!