The centre of mass of a solid hemisphere of radius $8 cm$ is $x cm$ from the centre of the flat surface. Then value of $x$ is ______.

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Solution

Centre of mass of a solid hemisphere of radius $R$ lies at a distance $\frac{3 R}{8}$ above the centre of the flat side of hemisphere.

$∴ h_{c m} = \frac{3 R}{8} = \frac{3 \times 8}{8} = 3 cm$

Hence, $3$ will be the correct answer.

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The centre of mass of a solid hemisphere of radius 8 cm is x cm from the centre of the flat surface. Then value of x is ______.

Centre of mass of a solid hemisphere of radius R lies at a distance 3R8 above the centre of the flat side of hemisphere. ∴hcm=3R8=3×88=3 cm Hence, 3 will be the correct answer.

The centre of mass of a solid hemisphere of radius $8 cm$ is $x cm$ from the centre of the flat surface. Then value of $x$ is ______.

Centre of mass of a solid hemisphere of radius $R$ lies at a distance $\frac{3 R}{8}$ above the centre of the flat side of hemisphere.

$∴ h_{c m} = \frac{3 R}{8} = \frac{3 \times 8}{8} = 3 cm$

Hence, $3$ will be the correct answer.