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Q. A 2 m long ladder rests against a wall and makes an angle of 30° with the horizontal floor. Where will be the instantaneous center of rotation when the ladder starts slipping?
(i) 1.0 in from the wall
(ii) 1.732 m from the wall
(iii) 1.0 m above the floor
(iv) 1.732 m above the floor
The correct answer is

  • (A) (i) and (iii)
  • (B) (i) and (iv)
  • (C) (ii) and (iii)
  • (D) (ii) and (iv)
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