11th grade math

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Using the formula 4.9t^2... A object is dropped how long will it take it to fall 92 meters

  • 11th grade math -

    d = 4.9t^2 = 92m,

    4.9t^2 = 92,
    t^2 = 92 / 4.9 = 18.78,

    t = sqrt(18.78) = 4.3s.

  • 11th grade math -

    4500 calories if heat ae added to a 50-gram ice cube at -10oc.

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