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A student performs the experiment and measures the distance between photogates: d = 50 ± 0.1 cm, the times measured by photogates: t₀ = 0.052 ± 0.001s and t₁ = 0.035 ± 0.001s, and the cart’s length: s = 10 ± 0.05 cm. Find the acceleration a of the cart and estimate uncertainty in a.

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