A ball is dro...

Question

A ball is dropped from the top of a building of height $80$ $m$ . At same instant another ball is thrown upwards with speed $50$ $m / s$ from the bottom of the building.The time at which balls will meet is

1.6 s

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5 s

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8 s

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10 s

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Solution

The correct option is A $1.6 s$
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