Engineering science
posted by Shah
A man throw a ball upward with velocity of 30m/s.1.5 seconds he throw anothe wih the same velocity. Identify at what high will te ball pass one another?

bobpursley
same height?
h1=30*t4.9t^2
h2=30(t3)4.9 (t3)^2
set h1=h2
solve for t. Notice it is a quadratic.
with t, now solve for either h.
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