2. Questions Bank
  3. 9th Class
  4. Science
  5. Work and energy

9th Class Science Work and energy Question Bank Work Power and Energy IIT JEE Objective Problems

  • question_answer
    A simple pendulum hanging freely and at rest is vertical because in that position.

    A)  K.E. is zero        

    B)  K.E. is minimum

    C)  P.E. is zero                        

    D)  P.E. is minimum

    Correct Answer: D

    Solution :

      Answer is (d).


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