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help_people
 one year ago
Amir pitches a baseball at an initial height of 6 feet, with a velocity of 73 feet per second. If the batter misses, about how long does it take the ball hit the ground?
Hint: Use H(t) = −16t2 + vt + s.
4.64 seconds
2.94 seconds
2.28 seconds
0.08 second
help_people
 one year ago
Amir pitches a baseball at an initial height of 6 feet, with a velocity of 73 feet per second. If the batter misses, about how long does it take the ball hit the ground? Hint: Use H(t) = −16t2 + vt + s. 4.64 seconds 2.94 seconds 2.28 seconds 0.08 second

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welshfella
 one year ago
Best ResponseYou've already chosen the best response.1when the ball hits the ground H(t) = 0

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1so plug in 0 for H(t) , 6 for s and 73 for v, then solve for t.

help_people
 one year ago
Best ResponseYou've already chosen the best response.0h(0)=16t^2+73t+6? @welshfella

help_people
 one year ago
Best ResponseYou've already chosen the best response.0then i would solve for t which i will do in a sec

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1i got a different value

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1did you use the quadratic formula?

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1x = [ 73 +/ sqrt(73^2  4*16*6) ] / (2*16)

help_people
 one year ago
Best ResponseYou've already chosen the best response.0oh ok its not different you just divided lol

help_people
 one year ago
Best ResponseYou've already chosen the best response.0what would i do after?

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1= (73  75.58) / 32 = 4.64

welshfella
 one year ago
Best ResponseYou've already chosen the best response.173^2  4*16*6 comes to 5713 and sqrt 5713 = 75.58

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1 the other root is 0.08 which we can ignore

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1 sorry it was 0.08 which of course we can ignore

help_people
 one year ago
Best ResponseYou've already chosen the best response.0ok so the answer would be 4.64? based on what you have explained/said

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1the other root is negative  the correct time is 4.64 seconds
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