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
Consider conservation of angular momentum you get:
Ang. Mom. (before)=Ang. Mom (after)
Where Ang. Mom.
Where:
So:
The skater slows down his rotaton by opening his arms.