It depends on what illness and what country you are in but Mayo Clinic and Johns Hopkins are good sources.
There is too much information given, it's hard to understand exactly which variables are important in this problem.
Separate the barriers so they have a 2cm gap between them.
Answer:
754.3 m
Explanation:
The moment of inertia of the solid disk:
Where m is the disk mass and R is the radius of the disk.
The angular kinetic energy of the disk is then:
By law of energy conservation, this energy is converted to potential energy to pick up the 3kg block
let g = 9.8 m/s2
where = 3 kg is the mass of block