C= πr²
C= 3.14×8²
C=3.14×64
C=200.96
You should write down and track only the 20lbs weight during your weighted exercise while ignoring your body weight.
<h3>What is actual weight?</h3>
Actual weight is also referred to as gross weight and it can be defined as the exact (original) weight of an object, as measured using an appropriate weighing scale.
This ultimately implies that, you would write down and track only the 20lbs weight during your weighted exercise such as a single rep of weighted overhand chin ups.
Read more on actual weight here: brainly.com/question/2335828
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Answer:r'=0.327 m
Step-by-step explanation:
Given

angular velocity 
mass of objects 
distance of objects from stool 
Combined moment of inertia of stool and student 
Now student pull off his hands so as to increase its speed to 3.60 rev/s


Initial moment of inertia of two masses 

After Pulling off hands so that r' is the distance of masses from stool

Conserving angular momentum








Answer:
what is the rest of the question?
Step-by-step explanation: