6.2. Requires

Try these first

1. 1.

   What is the definition of static equilibrium?

   Hint

   Consider 'resting' conditions in mechanics.

2. 2.

   List two characteristics of a two-force member.

   Hint

   Think about how forces are arranged.

3. 3.

   What characterizes static equilibrium?

   • No net force acting
   • Velocity is changing
   • Forces are unbalanced

   Hint

   Think about forces opposing each other.

4. 4.

   D'Alembert's Principle is used to:

   • True
   • False

   Hint

   Keep in mind the connection between motion and static force concepts.

5. 5.

   Given a two-force member with a tension of 10N and a compression of 10N, calculate the resultant force and explain the state of the member.

   Hint

   Consider how these forces interact.

6. 6.

   For a slider-crank mechanism, derive the piston acceleration given a crank distance of 0.2m, an angular velocity of 10 rad/s, and a crank angle of 30 degrees.

   Hint

   Don’t forget to convert your angle to radians when substituting into the equations.