Work done by centripetal force in half revolution is

    work done by centripetal force is zero
    work done by centripetal force is zero why
    work done by centripetal force is zero true or false
    work done by centrifugal force is zero
  • Work done by centripetal force is zero

    • Work done by centripetal force formula!

    Assertion: in circular motion work done by centripetal force is zero

    Assertion: In circular motion, work done by centripetal force is not zero always.
    Reason: If the speed of a particle increases or decreases in circular motion, net force acting on the particle does not remain towards the centre.

    A.

    Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
    B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
    C. Assertion is correct but Reason is incorrect
    D.

    Assertion is incorrect but Reason is correct.

    Hint: Work is defined as force multiplied by displacement in the direction of force.

    Why is the work done on an object moving with uniform circular motion zero

  • Work done by tangential force
  • Work done by centripetal force formula
  • Work done by centripetal force in circular motion
  • What is centripetal force

    • In circular motion centripetal force is perpendicular to velocity. Also if the particles decrease or increase their speeds in circular motion then acceleration is generated which deviates the net acceleration from pointing towards the centre.

    Complete step-by-step answer:
    We know that circular motion is a movement of an object along the circumference of a circle.

    It is also defined as rotation of an object along a circular path. It can be of two forms, uniform circular motion, with con

      work done by centripetal force is always zero
      work done by centripetal force is non zero