\(\Delta\varphi=\omega\Delta t=2\left(rad\right)\) \(\Rightarrow\) \(\left\{{}\begin{matrix}\text{S}_{max}=2Asin\dfrac{\Delta\varphi}{\text{2}}=2.10sin1\approx\text{16,83(cm)}\\\text{S}_{\text{min}}=\text{2A}\left(\text{1-cos}\dfrac{\Delta\varphi}{\text{2}}\right)=2.10\left(\text{1-cos1}\right)\approx\text{9,19(cm)}\end{matrix}\right.\)
Tham khảo:
\(\Delta\varphi=\omega\Delta t=2\left(rad/s\right)\)
\(\Leftrightarrow\left\{{}\begin{matrix}S_{max}=2Asin\dfrac{\Delta\varphi}{2}=2\cdot10sin1\approx16,8\left(cm\right)\\S_{min}=2A\left(1-cos\dfrac{\Delta\varphi}{2}\right)=2\cdot10\cdot\left(1-cos1\right)\approx9,19\left(cm\right)\end{matrix}\right.\)
