A 5 kg rock is dropped down a vertical mine shaft. How long does it take to reach the bottom, 79 meters below?

The time for the rock to reach the bottom is 4.02 seconds.

Explanation:

Given;

mass of the rock, m = 5 kg

height of the rock fall, h = 79 meters

The time to drop to the given height is given by;

where;

t is the time to fall to the bottom

g is acceleration due to gravity = 9.8 m/s²

Therefore, the time for the rock to reach the bottom is 4.02 seconds.

if the person is shown to have +90n, then ans is -10n.

if the person is shown to have -90n, then ans is +10n.

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.

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joke:

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