Astudent throws a set of keys vertically upward to his fraternity brother, who is in a window 4.00 m above. the brother’s outstretched hand catches the keys 1.50 s later. (a) with what initial velocity were the keys thrown? (b) what was the velocity of the keys just before they were caught?
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Astudent throws a set of keys vertically upward to his fraternity brother, who is in a window 4.00 m...
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