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The diameter of the base of a tapered drinking cup is 6.6cm . The diameter of its mouth is 9.8cm . The path of the cup curves when you roll it on the top of a table.

How much faster does the mouth move than the base?
Express your answer using two significant figures.

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3 answers
  1. An angular speed ω=v₁/R₁=v₂/R₂
    v₁/v₂= R₁/R₂=9.8/6.6 =1.48

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  2. vm/vb=1.257

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  3. Dfghjkkk

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