What was the velocity of keys just before they were caught

Reference no: EM13652966

A student throws a set of keys vertically upward to her sorority sister, who is in a window 4.00m above. The second student catches the keys 1.50s later. (a) With what initial velocity were the keys thrown? (b) what was the velocity of the keys just before they were caught?

Reference no: EM13652966

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