The area of this circle is 72π m².
2 answers:
The area of the sector will be 9π <span>m².
We know, area of circle is given as </span>πr², where r is the radius of the circle.
Here Area of circle,C = <span>72π m²
</span>
Area of a sector that subtends an angle 45°<span> at the center (the area shaded in yellow color) is given as:
A = 72</span>
×
⇒ A = 45×
π m².
⇒ A = 9π m².
We know, area of circle is given as </span>πr², where r is the radius of the circle.
Here Area of circle,C = <span>72π m²
</span>
Area of a sector that subtends an angle 45°<span> at the center (the area shaded in yellow color) is given as:
A = 72</span>
⇒ A = 45×
⇒ A = 9π m².
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The answer is:
The correct option is the option D
To calculate the acceleration, we need to use the following formula that involves the given information (initial speed, final speed, and time).
We need to use the following free fall equation:
Where:
is the final speed.
is the initial speed.
g is the acceleration due to gravity.
t is the time.
We are given the following information:
Then, using the formula to isolate the acceleration, we have:
Now, substituting we have:
Therefore, since we are looking for a magnitude, we have that the obtained value will be positive, so:
Hence, the correct option is the option D
Have a nice day!