A man standing on the roof of a building 30 meters high throws a rock vertically downward with an initial velocity of 5 m/s. What is the velocity of the rock just before it hits the ground?

there was no answer choices but i think its representative

d is the answer i came up with

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!