<u>Answer:</u>
<em>The required radius of its motion is 
.</em>
<u>Explanation:</u>
The formula for calculating the required radius of its motion is given by
Where <em>m= mass </em>
<em>V= moving velocity
</em>
<em>F=frictional force
</em>
<em>r = radius of its motion
</em>
Then the required radius of its motion is given by
<u>Given that
</u>
<em>mas =0.0818 kg
</em>
<em>Frictional force= 0.108 N
</em>
<em>Moving with Velocity of = 0.333 m/s
</em>
<em>radius of its motion = ![\frac{[0.0818 kg \times (0.333 m/s)^2]}{0.108 N}](https://tex.z-dn.net/?f=%5Cfrac%7B%5B0.0818%20kg%20%5Ctimes%20%280.333%20m%2Fs%29%5E2%5D%7D%7B0.108%20N%7D)
</em>
<em>Hence the required radius of its motion is r = 
</em>
Answer:
Refraction are in parts or are reflected brokely, like light against aluminum. While a reflection, is exact. Like a mirror.
The magnitude of the total displacement of her trip is 2.2 miles.
<h3>
Total displacement of Olivia's trip</h3>
The magnitude of the total displacement of her trip is calculated as follows;
Total east journey = 0.8 mi + 1.2 mi = 2 mi
Resultant displacement = √(y² + x²)
Resultant displacement = √(0.9² + 2²)
Resultant displacement = 2.2 mi
Thus, the magnitude of the total displacement of her trip is 2.2 miles.
Learn more about displacement here: brainly.com/question/321442
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Answer:
12.5 ft/s
Explanation:
Height of person = 6 ft
height of lamp post = 10 ft
According to the question,
dx / dt = 5 ft/s
Let the rate of tip of the shadow moves away is dy/dt.
According to the diagram
10 / y = 6 / (y - x)
10 y - 10 x = 6 y
y = 2.5 x
Differentiate both sides with respect to t.
dy / dt = 2.5 dx / dt
dy / dt = 2.5 (5) = 12.5 ft /s
