A wheel of mass 8 kg and radius 40 cm is rolling on a horizontal road with angular velocity 15 rad/s. If moment of inertia of the wheel about its axis is `0.64 kg m^(2)`, then the rolling kinetic energy of wheel will be
A. 288 J
B. 216 J
C. 72 J
D. 144 J

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1 Answers

Correct Answer - B
`K.E. = (1)/(2)mv^(2)(1+(K^(2))/(R^(2)))`

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