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If the angular momentum of a rotating body about a fixed axis is increased by . Its kinetic energy will be increased by

a)

10%

b)

20%

c)

21%

d)

5%


Question ID - 53212 :-

If the angular momentum of a rotating body about a fixed axis is increased by . Its kinetic energy will be increased by

a)

10%

b)

20%

c)

21%

d)

5%

1 Answer
5876 Votes
3537

Answer Key : (c) -

(c)

Increase in kinetic energy = 21%



Next Question :

From an inclined plane a sphere, a disc, a ring and a spherical shell are rolled without slipping. The order of their reaching at the base will be

a)

Ring, shell, disc, sphere

b)

Shell, sphere, disc, ring

c)

Sphere, disc, shell, ring

d)

Ring, sphere, disc, shell


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