4.1. Basic Equations

Try these first

1. 1.

   Define displacement in your own words.

   Hint

   Think about how we describe where something is.

2. 2.

   What is the equation for linear velocity?

   Hint

   Remember where each variable comes from: velocity, angular velocity, and radius.

3. 3.

   What does displacement measure?

   • A constant speed
   • The location relative to a reference point
   • The change in velocity

   Hint

   Think about how we describe where something is located.

4. 4.

   True or False: Velocity only considers how fast an object moves.

   • True
   • False

   Hint

   Consider the direction in which an object is moving.

5. 5.

   In a four-bar linkage, calculate the instantaneous center of two links and determine the velocity of a point on one link given the input angle.

   Hint

   Visualize the mechanism and apply the IC method.

6. 6.

   A crank-slider mechanism operates at a fixed angular velocity. Calculate the Coriolis acceleration for the slider when the slider’s mass moves at a given velocity.

   Hint

   Identify the angular velocity and calculate the relative speed.