Answer:
w₂ = 22.6 rad/s
Explanation:
This exercise the system is formed by platform, man and bricks; For this system, when the bricks are released, the forces are internal, so the kinetic moment is conserved.
Let's write the moment two moments
initial instant. Before releasing bricks
        L₀ = I₁ w₁
final moment. After releasing the bricks
         = I₂W₂
 = I₂W₂
        L₀ = L_{f}
        I₁ w₁ = I₂ w₂
        w₂ = I₁ / I₂ w₁
let's reduce the data to the SI system
      w₁ = 1.2 rev / s (2π rad / 1rev) = 7.54 rad / s
  
  let's calculate
        w₂ = 6.0/2.0   7.54
        w₂ = 22.6 rad/s
 
        
             
        
        
        
Looks like you simply substitute the length of the femur
        
             
        
        
        
Answer:

Explanation:
We are given that 







We have to find the exit temperature.
By steady energy flow equation 



Substitute the values 



