A 3.00-m-long 200-N ladder,leans against a smooth vertical wall with its base on a horizontal rough floor,a distance of 1.00 m away from the wall.The ladder is not completely uniform,so its center of gravity is 1.20 m from its base.What force of friction must the floor exert on the base of the ladder to prevent the ladder from sliding down?
A)93.3 N
B)130 N
C)28.3 N
D)102 N
E)150 N

Question

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The Answer of A 3.00-m-long 200-N ladder,leans against a smooth vertical wall with its base on a horizontal rough floor,a distance of 1.00 m away from the wall.The ladder is not completely uniform,so its center of gravity is 1.20 m from its base.What force of friction must the floor exert on the base of the ladder to prevent the ladder from sliding down?
A)93.3 N
B)130 N
C)28.3 N
D)102 N
E)150 N

A 300-M-Long 200-N Ladder,leans Against a Smooth Vertical Wall with Its