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anonymous

  • 4 years ago

If a car is speeding down a road at 40 miles/hour (\rm mph), how long is the stopping distance D_40 compared to the stopping distance D_25 if the driver were going at the posted speed limit of 25 \rm mph?

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  1. anonymous
    • 4 years ago
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    \[v^{2}-u^{2}= 2as\]

  2. anonymous
    • 4 years ago
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    what do i plug in for each value

  3. anonymous
    • 4 years ago
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    v= final velocity, u= initial velocity, a= acceleration and s= the distance.. so now you tell me..

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