2.5. E

Try these first

1. 1.

   Define equilibrium in your own words.

   Hint

   Think about a scenario where objects do not move.

2. 2.

   What is a force?

   Hint

   Consider everyday actions like pushing a door.

3. 3.

   What does equilibrium signify in a structural context?

   • All forces are applied equally.
   • The sum of forces and moments equals zero.
   • A structure experiences only vertical loads.

   Hint

   Consider how objects remain stationary.

4. 4.

   True or False: A bending moment causes a beam to straighten.

   • True
   • False

   Hint

   Think about the physical effects of bending.

5. 5.

   Imagine a bridge beam that has a uniform load. How would you determine the maximum bending moment it experiences using equations?

   Hint

   Consider the distribution of the load across the length.

6. 6.

   Design a small structure ensuring it remains in equilibrium despite changing loads. Discuss the factors you would need to consider.

   Hint

   Think about everyday structures and their support systems.