Posted by Megan on Sunday, January 23, 2011 at 4:15pm.
When h = hmax, Vf = 0,
Vf = Vi + gt = 0,
27 - 9.8t = 0,
-9.8t = -27,
t(up) = -27 / -9.8 = 2.76s,
t(tot.) = 2 * 2.76 = 5.52s.
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