Asked by Marie
From the edge of a 25 m building, a student threw s rock up 35 m/s and it landed on the ground.
How long was the rock in the air?
How long was the rock in the air?
Answers
Answered by
bobpursley
hf=hi+vi*t-4.9t^2
0=25+35*t-4.9 t^2
solve the quadratic with the quadratic equation.
0=25+35*t-4.9 t^2
solve the quadratic with the quadratic equation.
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