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The work done by the force acting on an object is zero if the displacement of the object

Options

  1. Ais in the opposite direction of the direction of force
  2. Bis in the same direction of the direction of force
  3. Cis in perpendicular direction of the direction of force
  4. Dnone of above

Correct answer

C. is in perpendicular direction of the direction of force

Step-by-step solution

Work done by a force is given by the dot product of force and displacement vectors. W = F s = F s where is the angle between the force vector F and the displacement vector s . For work done to be zero, must be zero, which implies = 90^ . Thus, the work done is zero when the displacement of the object is in a direction perpendicular to the direction of the force. Answer: is in perpendicular direction of the direction of force

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