Determine with what initial velocity were the keys thrown

Reference no: EM13665468

A learner throws a set of keys vertically upward to his friend who is in a window 4.00 meter above. His friend's outstretched hand catches the keys 1.5 second later.

a. Find with what initial velocity were the keys thrown?

b. Find what was the velocity of the keys just before they were caught?

Reference no: EM13665468

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