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JAMIA MILLIA ISLAMIA Jamia Millia Islamia Solved Paper-2012

  • question_answer
        A police jeep is chasing with velocity of 45 km/h a thief in another jeep moving with velocity 153 km/h. Police fires a bullet with muzzle velocity of 180 m/s. The velocity it will strike the car of the thief is

    A)  150 m/s              

    B)  27 m/s

    C)  450 m/s              

    D)  250 m/s

    Correct Answer: A

    Solution :

                    Here, we calculate the relative velocity of Jeep \[=153-45=108km/h\] \[=108\times \frac{5}{18}-=30m/s\] Therefore, striking speed = relative speed of bullet with respect to thiefs car \[=180-30=150\text{ }m/s\]


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