anonymous
  • anonymous
Which equation would best help solve the following problem? Hideki throws a baseball ball upward with an initial velocity of 12 m/s. When he throws the ball, it is 2 m above the ground. How long will it take the ball to hit the ground? A. –16t2+ 12t + 2 = 0 B. –4.9t2 + 12t + 2 = 0 C. –4.9t2 + 12t = 2 D. 4.9t2 + 12t + 2 = 0
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
@pinkbubbles
anonymous
  • anonymous
@pinkbubbles
anonymous
  • anonymous
–4.9t2+ 22t = 1.5 or –16t2+ 30t = 0 not sure what do you think?

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anonymous
  • anonymous
i agree
anonymous
  • anonymous
umm i think the first one
anonymous
  • anonymous
@pinkbubbles ?
jdoe0001
  • jdoe0001
what makes you think is the 1st one?
jdoe0001
  • jdoe0001
hint: \(\bf \text{initial velocity}\\ h = -16t^2+v_ot+h_o \qquad \text{in feet}\\ h = -4.9t^2+v_ot+h_o \qquad \text{in meters} \\ \quad \\ v_o=\textit{initial velocity of the object}\\ h_o=\textit{initial height of the object}\\ h=\textit{height of the object at "t" seconds}\)
anonymous
  • anonymous
that would be B then right @pinkbubbles
anonymous
  • anonymous
yup! c:
anonymous
  • anonymous
yeah

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