An ice skater of mass 75 kg is spinning about a vertical axis through the centre of

Question:

An ice skater of mass 75 kg is spinning about a vertical axis through the centre of her body, with arms outstretched horizontally, at a rate of two rotations per second. She then very quickly pulls her arms inwards so that they he along her axis of rotation. Her angular speed increases to6 rotations per second. By approximating her outstretched arms to a rod of total length 1.4 m and mass 5 kg, estimate the radius of gyration of her body (excluding her arms). The kinetic energy of the skater increases when she pulls her arms in. How is this possible?

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For  book-img-for-question
Question Posted: