PhysicsA force F acting on an object varies with distance r as shown here. The force is in newton and x in metre. The work done by the force in moving the object from x = 0 to x = 6 m is

A force F acting on an object varies with distance r as shown here. The force is in newton and x in metre. The work done by the force in moving the object from x = 0 to x = 6 m is

  1. A

    4.5 J

  2. B

    13.5 J

  3. C

    9.0 J

  4. D

    18.0 J

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    Solution:

    Work done = Area enclosed by F-x graph

                    = =12×(3+6)×3=13.5J

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