Engineering Mechanics: Dynamics


by Pooty
Tags: dynamics, engineering, mechanics
Pooty
Pooty is offline
#1
Sep24-10, 05:10 AM
P: 34
The problem I am having isn't so much related to an exact problem but I am a TA for Dynamics and I was creating a solution set for the current homework where we are dealing with equations of motion using either Normal and Tangential Components or using Cylindrical (2D-Polar) Coordinates. I know students are going to come in and ask how they are supposed to know to use which coordinate system on a test. Maybe you guys can provide me with a better explanation but I probably would tell them that we use the Normal and Tangential components when we know the path that the particle is traveling. Polar seems to be more for solving problems of curvilinear motion when the path is not known. Can you guys please elaborate on this and maybe give me a more educated explanation? I know I am the TA and I should know this class like the back of my hand but I haven't taken it for 4 years. I don't want to look like an idiot. Thanks.
Phys.Org News Partner Science news on Phys.org
Going nuts? Turkey looks to pistachios to heat new eco-city
Space-tested fluid flow concept advances infectious disease diagnoses
SpaceX launches supplies to space station (Update)
rock.freak667
rock.freak667 is offline
#2
Sep24-10, 01:41 PM
HW Helper
P: 6,213
Well I never really used polar coordinates in my dynamics class, but I just used to use n-t coordinates when I had a particle moving on a curved path essentially.


Register to reply

Related Discussions
mechanical engineering or engineering science and mechanics Academic Guidance 1
Engineering Dynamics Science & Math Textbook Listings 0
Engineering Dynamics Problem Advanced Physics Homework 1
Meriam Engineering Dynamics 5th ed. Introductory Physics Homework 1