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If a car covers 2/5th of the total dista...

If a car covers 2/5th of the total distance with v1 ,speed and 3/5th distance with v2 then average speed is

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Knowledge Check

  • If a car covers 2/5th of the total distance with p speed and 3/5th distance with v, then average speed is

    A
    `1/2sqrt(v_(1)v_(2))`
    B
    `(v_(1)+v_(2))/(2)`
    C
    `(2v_(1)v_(2))/(v_(1)+v_(2))`
    D
    `(5v_(1)v_+(2))/(3v_(1)+2v_(2))`

  • If a car covers (2)/(5)^(th) of the total distance with v_1 speed and (3)/(5)^(th) distance with v_2 . Then average speed is

    A
    `(1)/(2)sqrt(v_1v_2)`
    B
    `(v_1+v_2)/(2)`
    C
    (2v_1v_2)/(v_1+v_2)`
    D
    `(5v_1v_2)/(3v_1+2v_2)`

  • If a car covers (2)/(3) of the total distance with speed nu_(1) and (3)/(5) distance with speed v, then average speed is

    A
    `(1)/(2)sqrt(nu_(1)nu_(2))`
    B
    `(nu_(1)+nu_(2))/(2)`
    C
    `(2nu_(1)nu_(2))/(nu_(1)+nu_(2))`
    D
    `(5nu_(1)nu_(2))/(3nu_(1)+2nu_(2))`

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