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Physics- Elena please help!

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Two blocks each of mass 3.38 kg are fastened to the top of an elevator as in the figure.
(b) If the strings can withstand a maximum tension of 87.8 N, what maximum acceleration can the elevator have before the first string breaks?

  • Physics- Elena please help! - ,

    T(max) = 2m(g+a)= 2mg +2ma.
    a={T(max)-2mg}/2m = {87.8-2•3.38•9.8}/2•3.38 =3.2 m/s²

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