Terminology Translator for ES204

Principle

ES201 Name

Dynamics Name

Comments

 

  

 

Rate form for conservation of linear and angular momentum for a closed system.

  

 

Direct application of Newton’s Laws

 When to use:
bulletwant to find forces and/or accelerations
bulletwant to find velocities and/or distance traveled (which can be found by separating variables and integrating the basic kinematic relationships)

Other:

bulletBe careful! These are vector equations.
bulletThe book uses H0 for angular momentum instead of L0.

or if there are impulsive loads acting on the system

where Fi and Mi are only external impulsive forces and moments acting on the system.

  

 

 

Finite time form of conservation of linear and angular momentum for a closed system.

  

 

 

Impulse-momentum methods

 When to use:
bullethave an impact or impulsive forces
bulletthe system consists of several objects
bulletgiven a force as a function of time
bulletwant to find velocities, times, or forces (especially impulsive forces)

Other:

bulletBe careful! These are vector equations.
bulletThe book uses H0 for angular momentum instead of L0.

 

 

 

  

Finite time form of conservation of energy for an adiabatic closed system.

  

Work-energy methods.

 When to use:
bullethave two locations in space
bulletgiven a force as a function of position
bulletwant to find velocities, distances, or forces (sometimes)

Other:

bulletThis is a scalar equation