CBSE-XI-Physics

10: Rotational Mechanics

with Solutions -
  • #3
    In a rotating body,
    α=αr and ν=ω r. Thus
    αα=νω. Can you use the theorems of ration and proportion studied in algebra so as to write
    α+αα-α=ν+ων-ω
    Ans : No, we cannot use componendo-dividendo theorem of proportion here. This is because `` \alpha `` and a, and v and `` \omega `` are dimensionally different. Therefore, ​v + `` \omega `` and/or ​`` \alpha `` + a are not possible.
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