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A car travels distance A to …

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A car travels distance A to B at a speed of of 40 kilometre per hour and returns to A at a speed of 30 km/ h. A) what is the average speed of the whole journey? B) what is the average velocity?

    • Posted by Vanshika Xxxx 4 years, 3 months ago

    CBSE > Class 11 > Physics
    • 3 answers

    Ã.P.W.B.Đ ⚡ 4 years, 3 months ago

    12/7 is average speed and 0 is average velocity

    0Thank You

    Ã.P.W.B.Đ ⚡ 4 years, 3 months ago

    Oh no typing mistake...

    0Thank You

    Ã.P.W.B.Đ ⚡ 4 years, 3 months ago

    <speed>=v1v2/v1+v2 =40×30/40+30 =120/70 =12/7kmph <velocity>=0kmph since displacement is 0 metres.

    0Thank You

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