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Standard XII
Physics
Intuition for COM
The centre of...
Question
The centre of mass of a uniform thin hemispherical shell of radius R is located at a distance ?
A
π
R
2
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B
2
R
3
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C
R
2
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D
4
R
3
π
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Solution
The correct option is
C
R
2
The centre of mass of a uniform thin hemispherical shell of radius R is located at a distance
R
2
from the center.
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Similar questions
Q.
Consider the following statements
[1] CM of a uniform semicircular disc of radius
R
=
2
R
/
π
from the centre
[2] CM of a uniform semicircular ring of radius
R
=
4
R
/
3
π
from the centre
[3] CM of a solid hemisphere of radius
R
=
4
R
/
3
π
from the centre
[4] CM of a hemisphere shell of radius
R
=
R
/
2
from the centre
Which statement are correct :
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A uniform solid sphere of mass M and radius R is surrounded symmetrically by a uniform thin spherical shell of equal mass and radius 2R. The value of gravitational potential at a distance
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A wireframe is made of a wire of uniform cross-section, which is shown in figure. ABC, HGF and DIE are semicircular arcs of radius r. CD=DO=OE=EF=r and 'O' is the centre of circle. Then centre of mass of frame is (mass per unit length is
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