anonymous
  • anonymous
While traveling south on an expressway, a car traveling 60 mph (miles per hour) slows down to 30 mph in 12 minutes due to traffic conditions. Calculate the acceleration
Physics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
I have a=-2.5 mi/hsquared S
anonymous
  • anonymous
Is my answer correct?
anonymous
  • anonymous
simple formula v = u - at put v = 30 u = 60 t = 12*60

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More answers

anonymous
  • anonymous
30=60(1-12a)
anonymous
  • anonymous
12a =.5
anonymous
  • anonymous
a = 1/24 =0.0416 in the negative x direction
anonymous
  • anonymous
that's the answer?
anonymous
  • anonymous
is my answer wrong ??
anonymous
  • anonymous
all the possible answers are whole numbers
anonymous
  • anonymous
then probably the answers are wrong because u and i both know that v = u-at is the formula unless any different condition is there in the question . so did u type the question correctly
anonymous
  • anonymous
no im i thought i saw periods sorry. the answers are -150 -6.0 -450 -2.5
anonymous
  • anonymous
oh ho !! got it . your answers are given in hours . i considered speed in miles/hour but time i made it in seconds !!
anonymous
  • anonymous
correct ans 30 = 60 - 12a a = 30/12 = 2.5 in negative x direction
anonymous
  • anonymous
no im i thought i saw periods sorry. the answers are -150 -6.0 -450 -2.5
anonymous
  • anonymous
uff !! i am again wrong correct ans 30 = 60 - 12/60a a = 30* 60/12 = 150 mi/h^2
anonymous
  • anonymous
this time i really got the ans .. after dividing 12/60 i just converted 12min in hours
anonymous
  • anonymous
which one would it be out of those 4?
anonymous
  • anonymous
-150
anonymous
  • anonymous
thanks

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