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anonymous

  • one year ago

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

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  1. anonymous
    • one year ago
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    @pinkbubbles

  2. anonymous
    • one year ago
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    @pinkbubbles

  3. anonymous
    • one year ago
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    –4.9t2+ 22t = 1.5 or –16t2+ 30t = 0 not sure what do you think?

  4. anonymous
    • one year ago
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    i agree

  5. anonymous
    • one year ago
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    umm i think the first one

  6. anonymous
    • one year ago
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    @pinkbubbles ?

  7. jdoe0001
    • one year ago
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    what makes you think is the 1st one?

  8. jdoe0001
    • one year ago
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    hint: \(\bf \text{initial velocity}\\ h = -16t^2+v_ot+h_o \qquad \text{in feet}\\ h = -4.9t^2+v_ot+h_o \qquad \text{in meters} \\ \quad \\ v_o=\textit{initial velocity of the object}\\ h_o=\textit{initial height of the object}\\ h=\textit{height of the object at "t" seconds}\)

  9. anonymous
    • one year ago
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    that would be B then right @pinkbubbles

  10. anonymous
    • one year ago
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    yup! c:

  11. anonymous
    • one year ago
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    yeah

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spraguer (Moderator)
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