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Two blocks, each of mass m = 3.90 kg are hung from the ceiling of an elevator as in the figure below.
T₁
m
T₂
m
N
N
ta
(a) If the elevator moves with an upward acceleration a of magnitude 1.8 m/s², find the tensions T₁ and T₂ in the upper and lower strings.
T₁ =
T₂ =
(b) If the strings can withstand a maximum tension of 94.1 N, what maximum acceleration can the elevator have before a string breaks?
m/s²

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