Answer:
During
the course of their performance, an ice skater, a ballet dancer or an acrobat
take advantage of the principle of conservation of angular momentum (i.e. \[l\omega
\] = constant), by stretching out arms and legs or vice-versa. On doing so,
their moment of inertia increases/decreases. Hence angular velocity w of
their spin motion decreases/increases accordingly.
You need to login to perform this action.
You will be redirected in
3 sec