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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,bB. a,cC. b,dD. None of these |
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Answer» Correct Answer - 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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