physics

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A 1300-kg car rolling on a horizontal surface has speed v = 65 km/h when it strikes a horizontal coiled spring and is brought to rest in a distance of 2.3 m.


What is the spring stiffness constant of the spring?

  • physics -

    1/2 mv^2=1/2 k x^2

    change v to m/s then solve for k

  • physics -

    1023.04 N/M

  • physics -

    i put 1023.04 as the answer and it said it was wrong

  • physics -

    try using the correct sigfigs?

  • physics -

    and ur answer is wrong neway

    m=1300
    v~18
    x=2.3

    now solve

  • physics -

    79622?

  • physics -

    1.8*10^4

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