Suppose a skydiver (mass = 80kg) is falling toward the Earth. Calculate the skydiver’s gravitational potential energy at a point
2 answers:
Answer:
The gravitational potential energy of the skydiver=
Given:
Mass of the skydiver=80kg
Distance of the skydiver from the earth=100m
To find:
Gravitational potential energy of the skydiver
<u>Step by Step Explanation:</u>
Solution:
According to the formula, Gravitational Potential Energy (GHE) is calculated as
Where m= Mass of the skydiver
g=Acceleration due to gravity
h=Distance of the skydiver from the earth
Substitute the known values in the above equation we get
Result:
Thus the gravitational potential energy of the skydiver is =
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Answer:
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Explanation:
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we substitute
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therefore, by carefully measuring the zero intensity point, we can deduce the movement of the screen.
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Answer:
a)
Now we can replace the velocity for t=1.75 s
For t = 3.0 s we have:
b)
And we can find the positions for the two times required like this:
And now we can replace and we got:
Explanation:
The particle position is given by:
Part a
In order to find the velocity we need to take the first derivate for the position function like this:
Now we can replace the velocity for t=1.75 s
For t = 3.0 s we have:
Part b
For this case we can find the average velocity with the following formula:
And we can find the positions for the two times required like this:
And now we can replace and we got: