A solid sphere is rotating freely about its axis of
symmetry in free space. The radius of sphere
starts decreasing keeping its mass same. Which
of the following option is correct?
(1) Angular momentum will decrease
(2) Angular speed will increase
(3) Rotational kinetic energy will increase
(4) Both (2) and (3)
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ᴍᴀʀᴋ ᴀs ʙʀᴀɪɴʟɪsᴛ.
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