# Tossing A Ball

I throw a ball up in the air with some initial velocity $$v_1$$ and it stays in the air for some time $$t_1$$. I then throw the ball straight up with velocity $$v_2$$ and find that this time it stays in the air for a time $$t_2=2t_1$$. What is $$v_2/v_1$$?

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