Question

I appreciate any help!

8 kids on a "merry go round" are the the outer edge and move to the center. If the original angular velocity was 2 rad/sec and the moment of inertia went from 50 kg * m^2 to 40 kg * m^2, what is the new angular velocity?

Thanks for helping out!

Answer 1

@satellite73 @ganeshie8 @SolomonZelman @mathstudent55 @dan815 @Loser66 @Luigi0210 @AlexandervonHumboldt2 @surjithayer @sleepyjess @skullpatrol @Miracrown @ShadowLegendX

Answer 2

@Astrophysics

Answer 3

@dan815 @Loser66 @satellite73

Answer 4

@shamim

Answer 5

I think angular velocity will not change

Answer 6

Angular velocity depends on angular displacement nd time

Answer 7

Angular displacement of a man outerside of a circle= angular displacement of a man innerside of a circle

Answer 8

but wouldn't it change with a new moment of inertia @shamim ?

Answer 9

No

Answer 10

U know moment of inertia=m*r^2

Answer 11

So moment of inertia will b higher with higher radius of a circle

Answer 12

Nd moment of inertia will b dicrease with lower value of radius of a circle r

Answer 13

but wouldn't that mean the displacement got larger, changing the angular velocity

Answer 14

Displacement is 2 kinds

Answer 15

1 is linear displacement nd angular displacement

Answer 16

oh, I see. The change is linear, but not angular

Answer 17

U know angular velocity=angular displacement/time

Answer 18

I see, thank you very much!

Answer 19

U r most welcome!!!!