KJ4UTS
  • KJ4UTS
If a ball is dropped near the surface of the earth, then the distance it falls is directly proportional to the square of the time it has fallen. A ball is dropped over the edge of a vertical cliff and falls 39.2 meters in two seconds. Determine the distance (in meters) the ball would have dropped in 3.5 seconds. The ball would have dropped ____ meters. Round your answer to two decimal places
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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KJ4UTS
  • KJ4UTS
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KJ4UTS
  • KJ4UTS
Is this how you solve this problem 39.2 / 2 = 19.6 * 3.5 = 68.6
IrishBoy123
  • IrishBoy123
\[x \propto t^2 \implies x = k t^2\] \[\therefore k = \dfrac{x_1}{t_1^2} = \dfrac{x_2}{t_2^2}= \dfrac{x_3}{t_3^2} = \ldots\]

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KJ4UTS
  • KJ4UTS
I am a little confused by that what do I plug into where?
IrishBoy123
  • IrishBoy123
\[\dfrac{39.2}{2^2} = \dfrac{X}{3.5^2}\]
KJ4UTS
  • KJ4UTS
39.2/2^2 = 9.8
IrishBoy123
  • IrishBoy123
yeah
IrishBoy123
  • IrishBoy123
what is X?
IrishBoy123
  • IrishBoy123
? the distance it falls is directly proportional to **the square of** the time it has fallen more time, bigger drop, and its squared too.....
IrishBoy123
  • IrishBoy123
\[\dfrac{39.2}{2^2} = \dfrac{X}{3.5^2}\] \[X = 3.5^2 \cdot \dfrac{39.2}{2^2} \]
KJ4UTS
  • KJ4UTS
@IrishBoy123 120.05
IrishBoy123
  • IrishBoy123
\[\checkmark\]

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