SaraNextGen Study App [2022-23]
Last Updated On 23-10-2022 - By Sara

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

d)

Conserved about any point on a line parallel to the inclined plane and passing through the centre of the ball


Question ID - 100361 :-

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

d)

Conserved about any point on a line parallel to the inclined plane and passing through the centre of the ball

1 Answer
5876 Votes
3537

Answer Key : (d) -

(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



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