161- In the figure, if the string, pulley, and surfaces are frictionless, what is the ratio $\dfrac{T}{T_1}$ of the tension forces? $\left(g = 10\,\dfrac{\text{m}}{\text{s}^2}\right)$ [Figure: A pulley fixed to the ceiling with string tension $T$. A mass of $10\,\text{kg}$ hangs from the pulley. Below it, string tension $T_1$ connects to two masses: $20\,\text{kg}$ on the left and $20\,\text{kg}$ on the right.] (1) $1.5$ (2) $2$ (3) $2.5$ (4) $3$ %% Page 27 www.riazisara.irPhysicsPage 10120A
\textbf{161-} In the figure, if the string, pulley, and surfaces are frictionless, what is the ratio $\dfrac{T}{T_1}$ of the tension forces? $\left(g = 10\,\dfrac{\text{m}}{\text{s}^2}\right)$
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\textit{[Figure: A pulley fixed to the ceiling with string tension $T$. A mass of $10\,\text{kg}$ hangs from the pulley. Below it, string tension $T_1$ connects to two masses: $20\,\text{kg}$ on the left and $20\,\text{kg}$ on the right.]}
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(1) $1.5$
(2) $2$
(3) $2.5$
(4) $3$
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