Rotational Mechanics (Assertion & Reason)

Assertion: A solid sphere and a hollow sphere are rolling on the ground with same total K.E. If transnational K.E of solid sphere is K, then translation energy of hollow sphere should be greater than k.

Reason: In case of hollow sphere rotational K.E is less than its transnational K.E

5 Answers

865
Soumyadeep Basu ·

Assertion:- False
Reason:- True.

591
Akshay Ginodia ·

Assertion-False
Reason-False

213
Nandikesh Singh ·

Assertion - False
Reason - True

486
Niraj kumar Jha ·

K.E for hollow sphere=12mv2 +12*2mr2v23r2 (transnational K.E.+rotational K.E )
K.E. for solid sphere=12mv'2 +12*2mr2v'25r2
Equating the two we get,v<v'
Therefore,Assertion is False.
From the first expression,Reason is True

591
Akshay Ginodia ·

Yaa sorry the reason shud be true

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