A spherical solid ball of 1,kg mass and radiu | vedclass

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Question

since $\mathrm{K}$$. E.$ of rotation $=\frac{1}{2} \mathrm{I} \omega^{2}, \mathrm{I}=\frac{2}{5} \mathrm{MR}^{2}$

$	herefore \quad \mathrm{K.} \ma

Vedclass · Accepted Answer

$45$

Vedclass · Answer

since $\mathrm{K}$$. E.$ of rotation $=\frac{1}{2} \mathrm{I} \omega^{2}, \mathrm{I}=\frac{2}{5} \mathrm{MR}^{2}$

$	herefore \quad \mathrm{K.} \mathrm{E} \cdot=\frac{1}{2} 	imes \frac{2}{5} 	imes 1 	imes(.3)^{2} 	imes(50)^{2}=45 \mathrm{J}$

A spherical solid ball of $1\,kg$ mass and radius $30\,cm$ is rotating about an axis passing through its centre with an angular velocity of $50\,radian/s$ . The kinetic energy of rotation is ......... $J$.

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