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A motor vehicle travelled the first thir...

A motor vehicle travelled the first third of a distance s at a speed of `v_(1)=10 kmph` , the second third at a speed of `v_(2)=20kmph` and the last third at a speed of `v_(3)=60kmph` Determine the mean speed of the vehicle over the entire distances .

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The correct Answer is:
18 kmph
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A motor vehicle travelled the first third of a distance s at a speed of v_(1)=10 kmph, the second third at a speed of v_(2) =20 kmph and the last third at a speed of v_(3)=60 kmph determine the mean speed of the vehicle over the entire distances.

A motor vehicle travelled the first 1/3 of a distance at a speed of v_(1)=10kmph , the second 1/3 at a speed of v_(2)=20kmph and the last 1/3 at a speed of v_(3)=10kmph . Determine the mean speed of the vehicle over the entire distance s .

Knowledge Check

  • A motor vehicle travelled the first third of a distance s at a speed of v_(1)=10 kmph, the second third at a speed of v_(2)=20 kmph and the last third at a speed of v_(1)=60 kmph. Determine the mean speed of the vehicle over the entire distance s.

    A
    15 kmph
    B
    12 kmph
    C
    10 kmph
    D
    18 kmph

  • A motor vehicle travelled the first third of a distance s at a speed of v_(1)=10 kmph, the second third at a speed of v_(2)=20 kmph and the last third at a speed of v_(3)=60 kmp. Determine the mean speed of the vehicle over the entire distance s.

    A
    15 kmph
    B
    12 kmph
    C
    10 kmph
    D
    18 kmph

  • A motor vehicle travelled the first third of a distance s at a speed of v_(1)=10 kmph, the second third at a speed of v_(2)=20 kmph and the last third at a speed of v_(3)=60 kmp. Determine the mean speed of the vehicle over the entire distance s.

    A
    15 kmph
    B
    12 kmph
    C
    10 kmph
    D
    18 kmph

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    A motor vehicle travelled the first third of a distance s at a speed of v_1= 10 kmph, the second third at a speed of v_2=20 kmph and the last third at a speed of v_3= 60 kmph. Determine the mean speed of the vehicle over the entire distance s.

    A motor vehicle travelled the first third of a distance s at a speed of V_(1) =10 kmph,the second third at a speed of V_(2) =20 kmph and the last third at a sped of V_(3) =60 kmph. Determine the mean speed of the vehicle over the entire distance s.

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