A truck enters a typical runaway lane with a speed of 57.5 mph ( 25.7 m/s ). Use the work-energy theorem to find the minimum coefficient of

Question

A truck enters a typical runaway lane with a speed of 57.5 mph ( 25.7 m/s ). Use the work-energy theorem to find the minimum coefficient of kinetic friction between the truck and the lane to be able to stop the truck.

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Khang Minh 3 years 2021-08-28T07:18:47+00:00 1 Answers 20 views 0

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  1. thuthuy
    0
    2021-08-28T07:20:20+00:00
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    Answer:

    Work done by friction force= change in total Energy

    so,

    W= (friction force)*d= (mu*N)*(35)

    so,

    mu*m*g*35= 1/2*m*v^2

    so,

    mu= 0.5*(25.7)^2/(9.81*35)

    solving it,

    mu = 0.9618

    Explanation:

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