View Single Post
Jan4-04, 07:34 PM
P: 166
I got a little confused thinking about this. Consider a ball attatched to a (massless) rod. This system is to be accelerate about the free end of the rod. From what I know, the moment of inertia for this system would simply be the mr^2, since this is the same case as a free ball being accelerated at the same rate. However, it seems to me that the ball is also rotating around its own axis (since it is fixed on the rod), and thus wouldn't the force necessary for the same rate of acceleration be greater?
Phys.Org News Partner Physics news on
Step lightly: All-optical transistor triggered by single photon promises advances in quantum applications
The unifying framework of symmetry reveals properties of a broad range of physical systems
What time is it in the universe?