physics questions

1.A man walking on a tightrope carries a long a pole which has heavy items attached to the two ends. If he were to walk the tight-rope with just a pole, what difference would it make to his balance? Discuss this in terms of angular rotation, angular momentum, and moment of inertia.

All discussions should include an in depth analysis and references.

2.Discuss the applications of rotational forces in real-life situations. Remember to include relevant equations.

All discussions should include an in depth analysis and references.

3.Discuss stress and strain of materials in terms of Hooke's law.

All discussions should include an in depth analysis and references.