torque and force

by burak_ilhan
Tags: force, torque
burak_ilhan is offline
Dec17-03, 04:45 PM
P: 14
as you all now torque in rotational motion has similarity with force in translational motion. but torque has the same unit as seems to me that there is a problem. Any explanation you have? (please ssmt different than " they are defined that way!!"
Phys.Org News Partner Physics news on
Better thermal-imaging lens from waste sulfur
Scientists observe quantum superconductor-metal transition and superconducting glass
New technique detects microscopic diabetes-related eye damage
krab is offline
Dec17-03, 11:03 PM
Sci Advisor
krab's Avatar
P: 905
In translational motion, work done (energy) is

[tex]E=\int Fdx[/tex]

In the same manner, in rotational motion,

[tex]E=\int\tau d\theta[/tex]

Since [tex]\inline{\theta}[/tex] is dimensionless, torque [tex]\inline{\tau}[/tex] has same units as energy. If it helps in keeping things apart, you can think of the units of torque as being say joules per radian.

Register to reply

Related Discussions
torque and force Introductory Physics Homework 4
torque and force Introductory Physics Homework 2
torque or force Introductory Physics Homework 17
Torque vs force Introductory Physics Homework 2
Force & net torque. Please Help!! Introductory Physics Homework 1