Question

if the body
rolls perfectly on a surface then :-

i) VA=VB=VC
ii)VA>VB>VC
iii)VC>VB>VA
iv)none​

Answer 1

Answer:

the right answer is option 4 that is none

Answer 2

If a body rolls perfectly on a surface then the speed is maximum at the highest point whereas at the point of contact , it is minimum.

As there is no slipping at B ,

                                    v=Rw

                                   $V_{b}$=0

                                 $V_{a}$= v+Rw =2v

Velocity of any point P:   0 ≤$V_{c}$ ≤2v

In addition ,Angular velocity is same at different points of a rigid body.

(There is an image attached for better explanation)

Answer : None

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