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Find average friction force that would …

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Find average friction force that would stop a car of mass 500kg ina distance of 25 m. If the initial speed is 72km/h?

    • Posted by Karan Negi 6 years, 9 months ago

    CBSE > Class 11 > Physics
    • 1 answers

    Abhishek Tiwari 6 years, 9 months ago

    U=72*5/18=20m/s. S=ut+1/2at² V=u+at 0=20+at at=-20 25=20t-10t t=2.5 at=-20 a=-20/2.5 a=-8 Friction force= 500*8=-4000 N

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