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RAJASTHAN PMT Rajasthan - PMT Solved Paper-2008

  • question_answer
    A rocket with a lift-off mass \[3.5\,\times {{10}^{4}}\,kg\] is blasted upwards with an initial acceleration of \[10\,m/{{s}^{2}}\]. Then the initial thrust of the blast is

    A)  \[3.5\times {{10}^{5}}\,N\]                        

    B)  \[7.0\,\times {{10}^{5}}\,N\]

    C)  \[14.0\,\times {{10}^{5}}\,N\]     

    D)         \[1.75\,\times {{10}^{5}}\,N\]

    Correct Answer: A

    Solution :

    Here, thrust force is responsible to accelerate the rocket, so initial thrust of the blast.                 \[=ma\]                 \[=3.5\times {{10}^{4}}\times 10\]                 \[=3.5\times {{10}^{5}}N\]


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