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Finding initial velocity

  • Thread starter mcryder16
  • Start date
  • #1
10
0

Homework Statement



A car accelerates at 1.65 m/s2 along a straight road. It passes two marks that are 30 m apart at times 2.4 s and 4.8 s. What was the car's initial velocity?


Homework Equations




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The Attempt at a Solution

 

Answers and Replies

  • #2
674
2
Well you should list some relevant equations. Here is what you know: a, x, and change in time. And you want to know v_0.

So in your list of kinematic equations, do you have an equation that has all 4 of those variables?
 
  • #3
v = vo + at
s = 1/2 at2
v2 = v02+2as

choose one
 
  • #4
674
2
Your 2nd equation you listed is inaccurate TaiwanCountry. You forgot to mention the initial velocity in that equation.
 

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