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JEE Main2006PhysicsRotational MotionActual

A force of -F k acts on O , the origin of the coordinate system. The torque about the point (1,-1)

Options

  1. A-F( i - j )
  2. BF( i - j )
  3. C-F( i + j )
  4. DF( i + j )

Correct answer

C. -F( i + j )

Step-by-step solution

=(- i + j ) (-F k )=-F( i + j )

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