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JEE Main & Advanced Physics Motion in a Straight Line / सरल रेखा में गति Question Bank Self Evaluation Test - Motion in a Strainght Line

  • question_answer
    Two particles P and Q simultaneously start moving from point A with velocities 15 m/s and 20 m/s respectively. The two particles move with acceleration equal in magnitude but opposite in direction. When P overtakes Q at B then its velocity is 30 m/s The velocity of Q at point B will be

    A) 30 m/s  

    B) 5 m/s

    C) 20 m/s  

    D) 15 m/s

    Correct Answer: B

    Solution :

    As magnitude of acceleration is same \[\frac{30-15}{\text{t}}=\frac{20-{{\text{V}}_{\text{Q}}}}{\text{t}}\] \[15=20-{{\text{V}}_{\text{Q}}}\Rightarrow 5\text{ m/s}\]


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