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A car travel at36km h speeds …

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A car travel at36km h speeds up to72km h in 5 sec find aceleration.if the same car stops ar 20 sec calulate its negative acceleration

    • Posted by Akshit Sharma 5 years, 7 months ago

    CBSE > Class 09 > Science
    • 3 answers

    Pooja Agnihotri 5 years, 7 months ago

    CASE1 U= 36km/h = 10m/s V= 72km/h 20m/s T= 5 s Acceleration= v-u/t = 20-10/5 =10/5 =2m/s² CASE2 U= 20m/s V= 0m/s T= 20 s Acceleration=v-u/t = 0-20/20 =(-1m/s²) Negative sign indicates retardaction. Hope this answer helped!!

    0Thank You

    A A 5 years, 7 months ago

    Kutta

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    Suryansh Mishra 5 years, 7 months ago

    Hello

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