Huff Carter
07/13/2024 · High School

14 Un corpo si muove con accelerazione costante lungo l'asse \( s \) di un sistema di riferimento carte- siano. Se il corpo, inizialmente fermo, è partito da \( s_{0}=2,0 \mathrm{~m} \) nell'istante \( t_{0}=0 \mathrm{e} \), trascorsi \( 4,0 \mathrm{~s} \), si trova in \( s_{1}=4,0 \mathrm{~m} \), con quale legge oraria può essere descritto il suo moto? (a) \( s=(2,0 \mathrm{~m})+\left(0,25 \mathrm{~m} / \mathrm{s}^{2}\right) t^{2} \) (b) \( s=(2,0 \mathrm{~m})+\left(0,25 \mathrm{~m} / \mathrm{s}^{2}\right) t^{2} / 2 \) (c) \( s=(2,0 \mathrm{~m} / \mathrm{s})+\left(0,50 \mathrm{~m} / \mathrm{s}^{2}\right) t^{2} \) (d) \( s=(2,0 \mathrm{~m})-\left(0,25 \mathrm{~m} / \mathrm{s}^{2}\right) t \) (e) \( s=(4,0 \mathrm{~m})+\left(0,25 \mathrm{~m} / \mathrm{s}^{2}\right) t^{2} / 2 \)

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La legge oraria corretta è: **(b) \( s=(2,0 \mathrm{~m})+\left(0,25 \mathrm{~m} / \mathrm{s}^{2}\right) t^{2} / 2 \)**

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