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JEE Main & Advanced Physics Motion in a Straight Line / सरल रेखा में गति Question Bank Uniform Motion

  • question_answer
    A car moves for half of its time at 80 km/h and for rest half of time at 40 km/h. Total distance covered is 60 km. What is the average speed of the car                           [RPET 1996]

    A)         60 \[km/h\]

    B)                 80 \[km/h\]

    C)         120 \[km/h\]

    D)                180 \[km/h\]

    Correct Answer: A

    Solution :

                Time average speed = \[\frac{{{v}_{1}}+{{v}_{2}}}{2}=\frac{80+40}{2}=\]\[60km/hr\].


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