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if a football player passes a football from 4 ft. off the ground with an initial velocity of 36 ft. per sec. how long will it take the football to hit the ground? use the equation h=16t^2+36t+4
 one year ago
 one year ago
if a football player passes a football from 4 ft. off the ground with an initial velocity of 36 ft. per sec. how long will it take the football to hit the ground? use the equation h=16t^2+36t+4
 one year ago
 one year ago

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AjkBest ResponseYou've already chosen the best response.0
the height of the ground is zero, I think. So I would just sub in 0 for h then solve for t. One of the answers might not make sense (i.e. negative time) so toss that one out.
 one year ago

AjkBest ResponseYou've already chosen the best response.0
There is probably a simpler way than using the quadratic formula, but I'm lazy so... I just plugged the numbers in: a = 16 b = 36 c = 4 and got my 2 answers, one of them happened to be negative so I tossed it out, the other was (9+sqrt(97))/8 which I forced my calculator to approximate to 2.356 seconds. That would be my answer.
 one year ago
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