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Newtons 2nd Law just need to get started

  1. Oct 29, 2006 #1
    Problem : A car is to tow a 2,270kg truck with a rope. How strong should the rope be so that it will not break when accelerating the truck from rest to 3.00 m/s in 12.0 seconds?

    So I assume it wants me to find the tension?...but the 12 seconds is throwing me off....I'm not sure what that has to do with anything if sum of the forces = ma (F=ma)...so where does the time come into play...?
  2. jcsd
  3. Oct 29, 2006 #2
    You can use the time to find the acceleration. You have the initial and final velocity there if you noticed.
  4. Oct 29, 2006 #3
    ahh silly me...i was fooled by the word 'accelerating' and thought the acceleration was 3.00 m/s...i should have noticed it wasn't even in the right units to be acceleration....ok, i have the initial velocity and final...thanks for the jump start i needed
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