Short Answer
A ballerina spins initially at 1.5 rev/s when her arms are extended. She then draws in her arms to her body and her moment of inertia becomes 0.88 kg ∙ m2, and her angular speed increases to 4.0 rev/s. What was her initial moment of inertia?
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q14: A very light ping-pong ball moving east
Q28: A 0.10-kg ball,traveling horizontally at 25 m/s,strikes
Q33: Three objects are moving along a straight
Q34: Two air track carts move along an
Q38: A 60-kg swimmer suddenly dives horizontally from
Q38: Which of the following quantities are units
Q40: An empty train car of mass 2.0
Q54: A 1500-kg car traveling at 90 km/h
Q61: A dinner plate falls vertically to the
Q109: Astronaut Jennifer's lifeline to her spaceship comes