Q. If a spinning ice skater pulls in her arms, her angular velocity will?

यदि एक घूमता हुआ आइस स्केटर उसकी बाहों में खींच लेता है, तो उसका कोणीय वेग क्या होगा?

A
Increase
बढ़ोतरी
B
Decrease
घटाना
C
Remain the same
एक ही रहेगा
D
Become zero
शून्य हो जाओ

Explanation

Pulling in the arms decreases the skater’s moment of inertia II. Since angular momentum L=IωL = I \omega is conserved (no external torque), reducing II causes ω\omega (angular velocity) to increase.

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