So, the initial altitude of the parachuter is approximately <u>(C). 123 m</u>.
<h2>Introduction</h2>
Hi ! In this question, I will help you. In this question, you will learn about the fall time of the free fall motion. Free fall is a downward vertical motion without being preceded by an initial velocity. When moving in free fall, the following equations apply:
<h3>The equation for calculating the height (h)</h3>

<h3>The equation for calculating the time (s)</h3>

<h3>The equation for calculating the velocity (v)</h3>

With the following condition :
- t = interval of the time (s)
- h = height or any other displacement at vertical line (m)
- g = acceleration of the gravity (m/s²)
- v = velocity (m/s)
<h2>Problem Solving</h2>
We know that :
- t = interval of the time = 5 s
- g = acceleration of the gravity = 9.81 m/s²
What was asked :
- h = height or displacement at vertical line = ... m
Step by Step :




<h3>Conclusion</h3>
So, the initial altitude of the parachuter is approximately 123 m (C.)
<h3>See More</h3>
Answer:
The weight of an object is defined as the force of gravity on the object and may be calculated as the mass times the acceleration of gravity, w = mg.
Carbonation, Hydrolysis and Oxidation all relates to chemical reactions with the rocks - so these are forms of Chemical weathering
Frost wedging is where the rocks and earth is broken apart by water freezing and turning to ice. It has nothing to do with rocks themselves changing in their chemical composition. So this is a type of physical weathering.
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Answer:
<u>Frost wedging</u> is a type of physical weathering.
Kinetic energy means fast move movement