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AravindG

  • 2 years ago

a small cylinder of radius r is released coaxially from point A inside the fixed large cylindrical bowl of radius r as in fug.if the friction between the small and large cylinder is sufficient enough t o prevent any slipping then find (a) the fractions of total KE vs rotational when the cylinder reaches the bottom .(b) the normal force exerted by small cylinder on the larger one when it is at bottom.

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  1. AravindG
    • 2 years ago
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    |dw:1328285800230:dw|

  2. hosein
    • 2 years ago
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    do you use conservation law of E? between A& bottom point

  3. AravindG
    • 2 years ago
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    ?

  4. hosein
    • 2 years ago
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    in point A it has PE & in bottom has KE (rotational & transitional KE) do you get my goal?

  5. hosein
    • 2 years ago
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    \[mgr=(1/2mv ^{2})+(1/2)I \omega ^{2}\]

  6. AravindG
    • 2 years ago
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    ys

  7. AravindG
    • 2 years ago
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    then?

  8. hosein
    • 2 years ago
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    for sylender \[I=(1/2mr ^{2})\]

  9. hosein
    • 2 years ago
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    wait please...

  10. hosein
    • 2 years ago
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    from 2nd law of newton have \[N-mg=mv ^{2}/R\] right?

  11. hosein
    • 2 years ago
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    in part 1 question ask this: \[(0.5mv ^{2}+0.5\omega ^{2})/(0.5I \omega ^{2})\] so v=Rw i think ithink answer is:2[(R/r)]^2

  12. hosein
    • 2 years ago
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    sorry one of the i think is lampoon

  13. hosein
    • 2 years ago
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    big cylender is frictionless ok?

  14. hosein
    • 2 years ago
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    i answered part b on top

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