A ladder shown in figure is 4 m long and is supported by a horizontal floor and vertical wall. The coefficient of friction at the wall is 0.25 and that at the floor is 0.5. The weight of the ladder is 30 N and is considered at G. The ladder also supports a vertical load of 150 N at C. The least value of (0) at which the ladder may be placed without slipping to the left is A 2m (A) 30.24 (C) 46.64 30 N m. Im 150 N (B) 53.34 (D) 60.94