A girl sitting on a spinning bar tool with her legs folded, suddenly out spreads her angular velocity will:
Correct answer: A. Decrease
- A. Decrease
- B. Increase
- C. Remain the same
- D. First increase and then decrease
Explanation
According to conservation of Angular Momentum, Iω = constant Hence, when the girl sitting on a bar stool suddenly spreads her hands, then her angular velocity will decrease and moment of inertia will increase.
Last updated
Related questions
A body moves with constant angular velocity on a circle. Magnitude of angular acceleration is:
A body moving in a circle at constant speed
A body performing circular motion with a constant speed has a constant:
A fly wheel rotates at a constant speed of 3000rpm. The angle described by the shaft in radian in one second is:
A flywheel gains a speed of 540 rpm in 6 seconds. Its angular acceleration is: