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Friction Problem

  1. Oct 7, 2006 #1
    A car with four-wheel drive has a mass of 1000kg. Its weight is evenly distributed on its four wheels. The coefficient of static friction with the dry road is 0.8. The car starts from rest on a horizontal surface. What is the greatest forward acceleration that the car can ahcieve without spinning its wheels?

    I simply said F = mu x Fn
    = 0.8x1000x9.8=7840N

    and divided that by the mass to get 7840 / 1000 = 7.84 m/s^2

    But I feel that this is isn't correctly answering the question. Can anyone please help me out!?

    Thanks
     
  2. jcsd
  3. Oct 7, 2006 #2
    I dont see what else u could do. Seems perfect 2 me
     
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