anonymous
  • anonymous
The maker of an automobile advertises that it takes 12 seconds to accelerate from 25 kilometers per hour to 90 kilometers per hour. Assuming constant acceleration, compute the following. (a) The acceleration in meters per second per second (Round your answer to three decimal places.) _______ m/sec2 (b) The distance the car travels during the 12 seconds (Round your answer to two decimal places.) _______m
Calculus1
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
a. We know V0, V, and T so I pick the equation \[V = V_0 +at\] Plugging them all in I get 5.4167 m/s^2 b. Now the distance... we know those 4 variables now. I pick the equation \[X = 1/2(V_0+V)T\] Plug and chug, I get X = 690. You can even try b with other equations if you're feeling adventurous to make sure the answer is right! Hope that helps!
anonymous
  • anonymous
Eep, sorry I didn't convert any units! So converting units we end up with a. 5416.66 m/s^2 b. 690000 m
anonymous
  • anonymous
something isn't right.. I understand exactly what you're saying but it's calling it wrong

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anonymous
  • anonymous
That's odd, I apologize. Did it again though and got the same thing though. Hopefully someone can catch the issue here...
anonymous
  • anonymous
Ah maybe it's part a. It asks to round to 3 decimal places and I didn't notice that (rounding is the death of me) So rounded to 3 decimal places it's "5416.667"

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