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Homework Statement
A stone is launched straight up by a slingshot. Its initial speed is 20.2 m/s and the stone is 1.40 m above the ground when launched. Assume g = 9.80 m/s2.
A: How high above the ground does the stone rise?
B: How much time elapses before the stone hits the ground?
Homework Equations
Y=Vit+ 1/2ayt2
vf2-vi2/ay=T
The Attempt at a Solution
I have tried the first formula with the time from the second and can't get the answer. I have tried everything I can think of and was even working with others at school to try and get this one. I have seen the other problem identical to this listed but I couldn't understand it. Please Help
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