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

  • question_answer
    A packet is dropped from a balloon which is going upwards with the velocity 12 m/s, the velocity of the packet after 2 seconds will be                                  [Pb PMT 2004]

    A)                         ?12 m/s                      

    B)                                  12 m/s            

    C)                         ?7.6 m/s            

    D)                         7.6 m/s

    Correct Answer: C

    Solution :

                                When packet is released from the balloon, it acquires the velocity of balloon of value 12 m/s. Hence velocity of packet after 2 sec, will be             \[v=u+gt\]\[=12-9.8\times 2\] = ? 7.6 m/s.            


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