Answer:
Radius of the circle will be 2.5 m
Explanation:
We have given velocity of particle moving in the circle v = 5 m/sec
Acceleration of particle in the circle 
We have to find the radius of the circle
We know that acceleration is given by 
So 

So radius of the circle will be 2.5 m
Molecules and polyatomic ions are formed by covalent bonds.
T² caries directly as R³ .
This is Kepler's 3rd law of planetary motion .
Looks like you simply substitute the length of the femur
I feel like it could be A