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v is inversely proportional to r^2 when r=2, v=12. The value of r is approximately 2.83 when v= 4 8 6**
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Question

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## Answers ( No )

Answer:The correct answer option is

6.Step-by-step explanation:We know that is inversely proportional to so we can write it as:

∝

To change the proportionality to equality, we need to have a constant k.

When then so we can find the value of the constant :

Now that we know the value of , we can find the value of when :

≈

We are given

v is inversely proportional to r^2

so, we can write our equation as

where

k is proportionality constant

we have

r=2 and v=12

so, we can use it and find k

now, we can plug back k

we can plug r=2.83

so, we can plug it and find v

So, the approximate value of v is 6……….Answer