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NEET Sample Paper NEET Sample Test Paper-58

  • question_answer
    A conveyor belt is moving horizontally at a speed of 4m/s. A box of mass 20kg is gently laid on it. It takes 0.1sec for the box to comes to rest, if the belt continuous to move uniformly, then the distance moved by the box on the conveyor belt is:

    A) Zero                             

    B) 0.2m      

    C) 0.4m                            

    D) 0.8m

    Correct Answer: B

    Solution :

    [b] \[u=4m/s\] \[v\text{ }=\text{ }0~~~~~~comes\text{ }to\text{ }rest\text{ }t\text{ }=\text{ }0.1\text{ }sec\] \[v=u+at\] \[0=4+a\text{ (0}\text{.1)}\] \[a=-\,40\,m/s\] \[{{v}^{2}}-{{u}^{2}}=2aS\] \[0-{{(4)}^{2}}=2(-40)S(v=0)\] \[-16=-80S\] \[S=\frac{1}{5}m=0.2m\]


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