Question: With an initial velocity ~vi = 6 ms + 3 ms |, I toss to my friend standing 3m away his keys. I'm sitting and

With an initial velocity ~vi = 6 ms + 3 ms |, I toss to my friend standing 3m away his keys. I'm sitting and he's standing, so he catches them at a higher vertical position than I threw them at. a) For how long were the keys in freefall B) How much higher does he catch them than I threw them

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