The rigid-body-dynamics tag has no wiki summary.
1
vote
2answers
50 views
Deriving $T = F\ r = I\alpha$ for a rigid body
For a single point mass :
$\tau=F_{t}r=ma_tr=(m r^2)\alpha = I\alpha$
For multiple point masses bound together : $\sum \tau_i = (m_ir_i^2)\alpha = I\alpha$
But how do we go from that to $I\alpha = ...
1
vote
1answer
113 views
Force and Torque Question on an isolated system
If there's a rigid rod in space, and you give some external force perpendicular to the rod at one of the ends for a short time, what happens?
Specifically:
What dependence does the moment of inertia ...
2
votes
0answers
93 views
Elastic collision of rotating bodies
How would you explain in detail elastic collision of two rotating bodies to someone with basic understanding of classical mechanics?
I'm writing simple physics engine, but now only simulating ...
2
votes
0answers
127 views
What kind of shape has the lowest flutter wind speed?
What kind of shape has the lowest flutter wind speed and is the most unstable?
I mean for rigid body.
Thanks
Yes, I know many factors affect the flutter in a MSD system (for rigid body), however ...
1
vote
0answers
106 views
Deriving torque from Euler-Lagrange equation
How could you derive an equation for the torque on a rotating (but not translating) rigid body from the Euler-Lagrange equation? As far as I know from my first class in Classical Mechanics, there is ...
