a uniform ladder of length 3.25m and weighing 250N is placed against a smooth vertical wall with its lower end 1.25m from the wall. if coefficient of friction between the ladder and the floor is 0.3 , then , find the frictional force acting on the ladder at the point of contact between ladder and floor.
ans: 52.1N
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Given l = 3.25 m, W = 250 N,
let Ff be the frictional force acting on the ladder at the point of contact between the ladder and floor.
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Rf = 250 N
let Ff be the frictional force acting on the ladder at the point of contact between the ladder and floor.
Rf = 250 N