A gymnast takes turns with her arms and legs stretched. When she pulls her arms and legs in

A dancer on ice spins faster when she folds her arms due to

A dancer on ice spins faster when she folds her arms due to

Anamika who is facing South Walks 20 m, then she turns to her right and walks 15 m, then she turns to her right and walks 16 m, again she turns to her right and walks 12 m. How far is she from her starting point ?

An ice skater starts a spin with her arms stretched out to the sides. She balances on the tip of one skate to turn without friction. She then pulls her arms in so that her moment of inertia decrease by a factor of 2 . In the process of her doing so, what happens to her kinetic energy ?

If a gymnast sitting on a rotating disc with his arms out stretched suddenly lower his arms, then

A ballet dancer spins about a vertical axis at 60 rpm with arms outstretched. When her arms folded the angular frequency increases to 90 rpm. Find the change in her moment of inertia.