Question $2(1$ point$)$

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An object dropped from a building with height $y_1$ takes time $t_1$ to reach the ground. How long would it take for an object dropped from a building with height $y_2=2y_1?$

$\sqrt[\phantom{2}]{2}{t}_1$

$2t_1$

$2\sqrt[\phantom{2}]{2}{t}_1$

$4t_1$

None of these