This preview shows pages 1–3. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.
View Full Document2D Rigid Body Rotational Kinetics
−
Torque:
τ
(1) Torque is the rotational effect of the force, indicating the tendency of the force to turn a body. In
engineering it is also called moment.
sin
t
FF
r
F
r
τ
φ
=⋅=⋅
⋅
=⋅
A
is the lever arm (or moment arm) defined as the
perpendicular distance from the pivot to the
line of action of the force vector
r
is the distance from the pivot to the point of application of the force
is the angle between
F
and
r
(2) Torque is a vector with magnitude and direction, and the vector definition of torque is
This is the end of the preview. Sign up
to
access the rest of the document.
 Spring '08
 TSChang
 Physics, Force

Click to edit the document details