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A ball moves over a fixed track as shown...

A ball moves over a fixed track as shown in the figure. From `A` to `B` ball rolls without slipping. Surface `BC` is frictionless. `K_(A), K_(B)` and `K_(C)` are kinetix energies of the ball at `A, B` and `C`, respectively. Then
.

A

a,b

B

a,c

C

b,d

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
A
`TE._(A)=T.E_(B)=T.E_(C)`
`0+M"g"h_(A)=1/2mv^(2)+1/2Iomega^(2)+m"g"r`
`" "=1/2I omega^(2)+M"g"hC`
`"So "k_(B)gtk_(C)gtk_(A)`
`"So "h_(A)gth_(c)`
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