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A car weighting 1000kg and travelling …

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A car weighting 1000kg and travelling 30m/s stops at a distance of 50m decelerating uniformly. What is the force exerted by the brakes? What is the work done by the brakes?

    • Posted by Himanshu Singh 5 years, 8 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Siya Mishra 5 years, 8 months ago

    v² = u²+2as _ 0²=30²+2a×50 _ 0=900+100a _ -100a=900_ a = 900/-100=-9 _ F=ma _ 1000 ×-9=-9000 _ WORK = F×s = -9000× 50 = -450000J = - 450J

    1Thank You

    Anmol Tayal 5 years, 5 months ago

    89

    1Thank You

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