Rotation 3 Question 14

20. A sphere is rolling without slipping on a fixed horizontal plane surface.

In the figure, A is the point of contact. B is the centre of the sphere and C is its topmost point. Then,

(2009)

(a) vCvA=2(vBvC)

(b) vCvB=vBvA

(c) |vCvA|=2|vBvC|

(d) |vCvA|=4|vB|

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Answer:

Correct Answer: 20. (b, c)

Solution:

  1. vA=0,vB=v and vC=2v



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