SOLUTION: I need to solve (4.9)t^2=D and question if a perosn fell from 155 meters up how many seconds does it take to hit the ground? and I need the x and y numbers to make a graph can

Algebra ->  Linear-equations -> SOLUTION: I need to solve (4.9)t^2=D and question if a perosn fell from 155 meters up how many seconds does it take to hit the ground? and I need the x and y numbers to make a graph can       Log On


   



Question 661136: I need to solve (4.9)t^2=D
and question if a perosn fell from 155 meters up how many seconds does it take to hit the ground?
and I need the x and y numbers to make a graph
can you help me, I have got different answers from every site I was on
Thank You

Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


Substitute 155 for D and then solve for t. That is to say, divide by 4.9 and then take the positive square root.

John

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