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Question

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?
14 years ago

Answers

bobpursley
hf=hi+vi*t-4.9t^2
0=25+35*t-4.9 t^2

solve the quadratic with the quadratic equation.

14 years ago

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