(Solved): The gear-and-shaft system shown above has the same steel shaft diameter for both AB and CD, d=65mm. ...

The gear-and-shaft system shown above has the same steel shaft diameter for both AB and CD, d=65mm.

Given: G=77.2 GPa

Find the

1. angle of twist on gear B
2. the angle of twist on gear C
3. the angle of twist on gear D
4. max shear stress in shaft AB
5. max shear stress in shaft CD