Posted by Derp on Wednesday, August 22, 2012 at 2:03am.
Solve this equation for t:
H(t) = 55 + 19.6 t -4.9 t^2 = 0
Take the positive root. (There will be two solutions.)
Drwls
Could it also be solved by using
v=u+at for the upward throw;then another motion equation for the upward distance; added to the fall time (sqrt 2h/g) all the way to the bottom?
Charlie
Yes, that would work also.
g
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