Go Back   Physics Help Forum > High School and Pre-University Physics Help > Periodic and Circular Motion

Periodic and Circular Motion Periodic and Circular Motion Physics Help Forum

Reply
 
LinkBack Thread Tools Display Modes
Old Nov 12th 2014, 07:44 AM   #1
Junior Member
 
Join Date: Oct 2014
Posts: 8
Drawing phasor diagrams when x is the sum of two Cos terms

If x= ACos(wt) + ACos(Wt), how do I draw a phasor diagram when t=2? Do I treat each cosine term as a vector, and then do vector addition? Thank you


w=4*pi and W=5*pi, by the way
PhysicsKidd is offline   Reply With Quote
Old Nov 13th 2014, 01:49 PM   #2
Physics Team
 
ChipB's Avatar
 
Join Date: Jun 2010
Location: Morristown, NJ USA
Posts: 2,280
At t = 2 the value of ACos(4 pi t ) is A, and the value of Acos(5 pi t ) is also A. So at t =2 the two phasors are aligned along the real axis, and so the vector addition gives a result of 2A along the real axis.
ChipB is offline   Reply With Quote
Reply

  Physics Help Forum > High School and Pre-University Physics Help > Periodic and Circular Motion

Tags
cos, diagrams, drawing, phasor, sum, terms



Thread Tools
Display Modes


Similar Physics Forum Discussions
Thread Thread Starter Forum Replies Last Post
Phasor and calculating sin signals Nforce Advanced Electricity and Magnetism 1 Jun 12th 2015 09:02 AM
drawing circuit diagrams Ray3Ray3 Electricity and Magnetism 2 Apr 4th 2011 12:47 AM
Drawing free body diagrams Riyafa Kinematics and Dynamics 1 Sep 17th 2009 04:06 AM
Drawing Feynman Diagrams with LaTeX and METAFONT Pmb General Physics 1 Aug 16th 2009 02:30 PM
Phasor representation noppawit General Physics 1 Feb 1st 2009 10:06 AM


Facebook Twitter Google+ RSS Feed