SOLUTION: A student dropped a ball from the top of a 81-foot building. The height of the ball after t seconds is given by the quadratic equation h= -9t(squared) + 81. How long does it take t
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Question 708461: A student dropped a ball from the top of a 81-foot building. The height of the ball after t seconds is given by the quadratic equation h= -9t(squared) + 81. How long does it take the ball to hit the ground?
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
What planet are you on? The acceleration due to gravity on earth is -32 ft per second per second, so if you are on earth and using feet as your unit of distance measure then the height function is \ =\ -16t^2\ +\ 81)
. Wherever you are performing this experiment, it isn't even in our solar system.
Be that as it may, the hint for solving your problem as stated is: The height of the ground is zero.
John
Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it
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