Difference between revisions of "Forest UCM NLM AtwoodMachine"

From New IAC Wiki
Jump to navigation Jump to search
Line 25: Line 25:
 
==Step 3: Draw the Free Body Diagram==
 
==Step 3: Draw the Free Body Diagram==
  
[[File:TF_UCM_FBD_InclinedPlaneWfriction.png | 200 px]]
+
[[File:TF_UCM_FBD_DoubleAtwoodMach.png | 200 px]]
  
 
== Step 4: Define the Force vectors using the above coordinate system==
 
== Step 4: Define the Force vectors using the above coordinate system==

Revision as of 11:27, 22 August 2014

Simple Atwood's machine

TF UCM SAM 1.gif


[math]\Rightarrow T = \frac{2m_1m_2}{m_1+m_2} g[/math]

Double Atwood's machine

TF UCM DAM 1.gif


The problem

Step 1: Identify the system

Each block is a separate system with two external forces; a gravitational force and the rope tension.

Step 2: Choose a suitable coordinate system

A coordinate system with one axis that defines the posive direction as up is one possible orientation.

Step 3: Draw the Free Body Diagram

200 px

Step 4: Define the Force vectors using the above coordinate system

Step 5: Use Newton's second law

Forest_UCM_NLM#Atwoods_Machine