Wednesday

April 16, 2014

April 16, 2014

Posted by **Lancelot** on Wednesday, May 16, 2007 at 3:15am.

Use the parallel axis theorem

http://hyperphysics.phy-astr.gsu.edu/hbase/parax.html

to compute the moment of inertia about the new axis. Call it I'. The parallel axis theorem tells you how to relate I' to the moment of inertia about the center of mass, which is

I = (1/2) M R^2

In your case, the parallex axis theorem says that

I' = I + M (R/2)^2 = (3/4)MR^2

Finally, the kinetic energy is

(1/2) I' w^2

where w is the angular velocity, "omega"

I see now, Thanks.

**Related Questions**

physics - A curcial part of a piece of machinery starts as a flat uniform ...

Physics - A machine part is made from a uniform solid disk of radius R and mass ...

Physic - A machine part is made from a uniform solid disk of radius R = 0.161 m ...

Calculus - A ball of radius 14 has a round hole of radius 8 drilled through its ...

calculus 2 - A ball of radius 12 has a round hole of radius 6 drilled through ...

calculus - A ball of radius 10 has a round hole of radius 8 drilled through its ...

Calculus - A ball of radius 16 has a round hole of radius 4 drilled through its ...

calculus - A ball of radius 10 has a round hole of radius 5 drilled through its ...

Physics! - The figure shows a uniform disk with a circular hole cut out of it. ...

Calculus - A ball of radius 12 has a round hole of radius 6 drilled through its ...