# A figure skater spinning at 3.4 rad/sec with a moment of inertia of 3.2 kgm2 puts his arms out so that his new moment of inertia is 4.5 kgm2. What is his new angular speed?

##### 1 Answer

Jun 8, 2015

Ang. Mom. (before)=Ang. Mom (after)

Where Ang. Mom.

Where:

So:

The skater slows down his rotaton by opening his arms.