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March 24, 2017

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Your right rear tire has to support a weight of 3000 Newtons. Normally the contact area of your tire with the road is 200 square centimeters. If the pressure in your tire is suddenly reduced from 32 pounds per square inch to 16 pounds per square inch, what must be the new contact area to support the car?

  • Physics - ,

    p1 =32 psi = 220632 Pa,
    p2 =16 psi = 110316 Pa

    p =F/A ,
    A1 =F/p1 =3000/220632=0.0136 m² =136 cm²
    A2 =F/p2 =3000/110316 =0.0272 m² =272 cm²

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