With what initial velocity were the keys thrown, Physics

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A student throws a set of keys vertically upward to his fraternity brother, who is in a window 4.40 m above. The brother's outstretched hand catches the keys 1.30 s later.

(a) With what initial velocity were the keys thrown?
(b) What was the velocity of the keys just before they were caught?(Take upward as the positive direction.)


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