A ball rolls without slipping. The radius of gyration of the ball about an axis passing through its centre of mass is K. If radius of the ball be R, then the fraction of total energy associated with its rotational energy will be :
A
(K² + R²)/R²
B
K²/R²
C
K²/(K² + R²)
D
R²/(K² + R²)

Question

A ball rolls without slipping. The radius of gyration of the ball about an axis passing through its centre of mass is K. If radius of the ball be R, then the fraction of total energy associated with its rotational energy will be :

A

(K² + R²)/R²

B

K²/R²

C

K²/(K² + R²)

D

R²/(K² + R²)

Accepted Answer

K²/(K² + R²)

Answer

(K² + R²)/R²

Answer

K²/R²

Answer

R²/(K² + R²)

AIPMT PRELIMS 2003 Physics Energy MCQ Question

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