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A sphere is released on a smooth inclined plane from the top. When it moves down, its angular momentum is |
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a) |
Conserved about every point |
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b) |
Conserved about the point of contact only |
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c) |
Conserved about the centre of the sphere only |
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d) |
Conserved about any point on a line parallel to the inclined plane and passing through the centre of the ball |
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A sphere is released on a smooth inclined plane from the top. When it moves down, its angular momentum is |
|
|
a) |
Conserved about every point |
|
b) |
Conserved about the point of contact only |
|
c) |
Conserved about the centre of the sphere only |
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d) |
Conserved about any point on a line parallel to the inclined plane and passing through the centre of the ball |
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(d) As the inclined plane is smooth, the sphere can never roll, rather it will just slip down. Hence, the angular momentum remains conserved about any point on a line parallel to the inclined plane and passes through the centre of the ball |