2. Sample Papers
  3. NEET

NEET Sample Paper NEET Sample Test Paper-2

  • question_answer
    A block of mass 1kg is placed on a rough horizontal surface connected by a light string passing over two smooth pulleys as shown. Another block of 1kg is connected to the other end of the string. The acceleration of the system is: (Coefficient of friction \[\mu =0.2\])

    A)  \[0.8g\text{ }m/{{s}^{2}}\]          

    B)  \[0.4g\text{ }m/{{s}^{2}}\]

    C)  \[0.5g\text{ }m/{{s}^{2}}\]            

    D)  zero

    Correct Answer: B

    Solution :

    Let, tension in the spring is T For the hanging block, \[mg-T=ma\] and for the block horizontal surface \[T=\mu \,mg=ma\] On adding equations (i) and (ii), we get \[a=\frac{mg-\mu mg}{2m}\] If \[m=1kg.\]  \[\mu =0.2,\] then \[a=0.4\,gm/{{s}^{2}}\]


You need to login to perform this action.
You will be redirected in 3 sec spinner