2. Sample Papers
  3. NEET

NEET Sample Paper NEET Sample Test Paper-64

  • question_answer
    A ball of mass 0.1 kg is suspended by a string. It is displaced through an angle of \[60{}^\circ \] and left. When the ball passes through the mean position, the tension in the string is

    A) 19.6 N  

    B)   1.96 N

    C) 9.8 N               

    D) zero

    Correct Answer: B

    Solution :

    \[T=mg\,+\,\frac{m{{v}^{2}}}{l}\] \[=\,\,mg\,+\,\frac{m}{l}\,\left[ 2\,gl\,(1-cos\,\theta ) \right]\] \[=mg+2mg(1-cos\text{ }60{}^\circ )\] \[=\,\,2\,\,mg\,=\,\,2\times 0.1\times 9.8\,\,=\,\,1.96\,\,N\]


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