A student throws a set of keys vertically upward to her sorority sister, who is in a window 2.90 m above. The second student catches the keys 2.60 s later. (a) With what initial velocity were the keys thrown? magnitude 8.37 x m/s direction up (b) What was the velocity of the keys just before they were caught? magnitude 4.37 x m/s direction down

A student throws a set of keys vertically upward to her sorority sister, who is in a window 2.90 m above. The second student catches the keys 2.60 s later. (a) With what initial velocity were the keys thrown? magnitude 8.37 x m/s direction up (b) What was the velocity of the keys just before they were caught? magnitude 4.37 x m/s direction down