Angular Impulse-Momentum Principle - Conceptual Example 10.7-2

 

An Olympic platform diver is initially rotating in a tucked position during a dive before unfolding himself prior to entering the water.

 

If we neglect air resistance, as the diver extends his body his angular velocity ...

 

increases.
decreases.
remains the same.
Not enough information provided.

 

 

 

For the previous situation, what happens to the diver's kinetic energy?

 

It stays the same as he releases from the tuck.
It becomes larger when he releases from the tuck.
It becomes smaller when he releases from the tuck.