SOLUTION: A ball is short from a cannon into the air with an upward velocity of 40ft/seconds.The equation that gives the height (h) of the ball at any time (t) is: h=-16t^+40tc1.5. How long

Question 1121411: A ball is short from a cannon into the air with an upward velocity of 40ft/seconds.The equation that gives the height (h) of the ball at any time (t) is: h=-16t^+40tc1.5. How long did it take for the ball to reach the ground?
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
A ball is short from a cannon into the air with an upward velocity of 40ft/seconds.The equation that gives the height (h) of the ball at any time (t) is: h=-16t^+40tc1.5. How long did it take for the ball to reach the ground?
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h=-16t^+40tc1.5. IDK what that means.
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Use h = -16t^2 + 40t
At impact, -16t^2 + 40t = 0
Solve for t.
You get 2 answers, t=0 when it's fire.
The 2nd answer is at impact.
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Note: 16t^ has no meaning.
It's 16t^2
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